Hai C Pham

US Patent 7365764 Scanning optical apparatus and color image forming apparatus using the same

US Patent 7369148 Frequency modulation apparatus and frequency modulation method

US Patent 7375740 Method and apparatus for adjusting printbar uniformity

US Patent 7379085 System and method for reducing non-linearity errors between two imaging stations

US Patent 7379086 Polygon mirror unit having a seal member with slits positioned between a central portion and a peripheral portion

US Patent 7382389 Methods and systems for thermal-based laser processing a multi-material device

US Patent 7382390 Image forming apparatus and control method thereof having main scan length correcting feature

US Patent 7382392 Method and apparatus for compensating for scanning skew

US Patent 7382393 Optical disk device

US Patent 7382394 System and method for correcting scan position errors in an imaging system

US Patent 7385619 Image forming apparatus

US Patent 7388694 Method, program and system for image drawing

US Patent 7391431 Image forming apparatus for correcting magnification of image

US Patent 7394475 Apparatus, system, and method for image registration

US Patent 7394476 Methods and systems for thermal-based laser processing a multi-material device

US Patent 7394478 Exposure system

US Patent 7394479 Pulsed laser printing

US Patent 7397492 Image forming device

US Patent 7397493 Laser printhead having a mechanical skew correction mechanism

US Patent 7397494 Scan linearity correction parameters addressing ROM address bits

US Patent 7399051 Ejection device, material coating method, method of manufacturing color filter substrate, method of manufacturing electroluminescence display device, and method of manufacturing plasma display device

US Patent 7400338 Image forming apparatus with temperature detection

US Patent 7400339 Method and system for automatically compensating for diagnosed banding defects prior to the performance of remedial service

US Patent 7403214 Systems and methods for adjusting the dynamic range of a scanning laser beam

US Patent 7403215 Current driver and power control for electrophotographic devices

US Patent 7403216 Film exposure method and apparatus using liquid crystal display

US Patent 7408567 Light beam scanning apparatus and image forming apparatus

US Patent 7408568 Image forming apparatus and network system provided with the same

US Patent 7411601 Exposure head

US Patent 7411602 System, method, and program for alternating sheets of media

US Patent 7411603 Light guide

US Patent 7414644 Image forming device

US Patent 7414645 Image forming apparatus with scanning lens

US Patent 7417652 Image forming apparatus

US Patent 7417661 Image forming apparatus and program product optimizing scanner motor operation

US Patent 7417662 Sensor module docking arrangement with multiple degrees of freedom constraint

US Patent 7420580 Laser power calibration in an optical disc drive

US Patent 7420581 Method and apparatus for printing on a label side of a disc medium

US Patent 7420582 Light source device, method of manufacturing light source device, and line head module

US Patent 7420583 Image forming apparatus and control method therefor

US Patent 7425976 Variable frequency generator

US Patent 7427999 Image forming apparatus

US Patent 7432943 Image forming apparatus

US Patent 7432944 Illumination utilizing a plurality of light sources

US Patent 7432945 Exposure apparatus and image forming apparatus

US Patent 7432947 Apparatus and method of electrophotographic printing employing diffusive light sources and apparatus and method of scanning a document

US Patent 7434906 Method for converting printing data and device using the same

US Patent 7436420 System and method for controlling a tracking servo during label printing

US Patent 7436421 Apparatus and methods for forming optically visible marks on a rotating media

US Patent 7436422 Light source module, optical unit array and pattern writing apparatus

US Patent 7436424 Light beam scanning apparatus and image forming apparatus with parallel modulating and driving channels

US Patent 7436425 Optical writing apparatus and image forming apparatus

US Patent 7439996 Medical image recording system and medical image recording apparatus

US Patent 7439997 System and method for controlling a multi-function digital media drive

US Patent 7439999 Optical scanning apparatus and image-forming apparatus using the same

US Patent 7443410 Radially non-collinear track starting positions on label side of optical disc

US Patent 7443412 Exposure apparatus adopting organic light-emitting diode array as light source

US Patent 7443414 Apparatus for and method of forming image using oscillation mirror

US Patent 7446787 Image forming apparatus in which a fan is used to affect air flow

US Patent 7446792 Method and apparatus for forming visible image on optical disk

US Patent 7453484 Image forming apparatus

US Patent 7453485 Image writing apparatus for controlling transfer of image data

US Patent 7456855 Method for image generation on a recording material

US Patent 7456856 Clock signal generation circuit, optical scanning apparatus, and image forming apparatus

US Patent 7460144 Optical scanning device and image forming apparatus

US Patent 7460145 Multi-beam pitch adjusting apparatus and image forming apparatus

US Patent 7463278 Pixel clock generation circuit

US Patent 7465009 Printing apparatus, printing system, and printing start position alignment method

US Patent 7466332 Light scanning unit

US Patent 7466333 Optical scanning apparatus and image-forming apparatus using the same

US Patent 7467842 Ink jet nozzle assembly with over-actuation detection

US Patent 7471305 Constant angular velocity disk label printing

US Patent 7471308 Frequency modulation apparatus and frequency modulation method

US Patent 7471309 Image exposing apparatus and image exposing method

US Patent 7472979 Optical encoder device, and system including same

US Patent 7477278 Substrate having dye layers that locationally change in color upon exposure to beam

US Patent 7479977 Image forming apparatus and laser scanning method thereof

US Patent 7489328 Image correction in an image forming apparatus and image forming method

US Patent 7489329 Scanning apparatus using vibration light modulator

US Patent 7492385 Labeling an optical medium having a prelabeled or unlabelable region

US Patent 7494200 Recording apparatus and recovery control method

US Patent 7497551 Ink-jet recording device with mist adsorbing capability

US Patent 7499070 Method of diagnosing a state of a horizontal synchronizing signal for an optical scanner

US Patent 7499071 Exposure device with a transmissive member and members for shielding the same

US Patent 7502045 Image forming apparatus with LED head

US Patent 7502047 Image forming apparatus for forming an image in an accurate position

US Patent 7505059 Line head, image forming apparatus incorporating the same, and method of adjusting position of the same

US Patent 7505060 Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same

US Patent 7508407 Light scanning apparatus, image forming apparatus equipped with such light scanning apparatus, and control method or image forming method for such image forming apparatus

US Patent 7508408 Image forming apparatus capable of effectively initializing a laser drive circuit

US Patent 7508410 Printing apparatus and information processing apparatus, control method thereof, program, and storage medium

US Patent 7515165 Laser power calibration in an optical disc drive

US Patent 7515168 Laser scanning optical apparatus having exclusive optical elements at varying distances from receiving surfaces

US Patent 7515170 Optical scanner and image forming apparatus

US Patent 7515171 Light scanning module having cleaning shutter to clean laser scanning window and image forming apparatus having the same

US Patent 7518625 Image forming apparatus and associated methodology of forming an enlarged image

US Patent 7518626 Light beam synchronization detector and printer

US Patent 7518628 Image forming apparatus capable of effectively correcting main scanning misregistration

US Patent 7522180 Image writing apparatus and color image forming apparatus

US Patent 7525561 Optical scanner and image forming apparatus

US Patent 7525562 Graphic-arts laser imaging with reduced-length laser cavities and improved performance

US Patent 7528853 Color image forming apparatus and process cartridge

US Patent 7528854 Device including light-emitting elements above a glass substrate

US Patent 7528855 Light scanning device, and image forming apparatus using the light scanning device

US Patent 7528856 Image forming apparatus, optical scanning device and manufacturing method of optical scanning device

US Patent 7528859 Electrophotographic image forming apparatus

US Patent 7531292 Method for producing disc overlay proofs

US Patent 7532226 Bleaching the background of a medium

US Patent 7532227 Optical scanner and image forming apparatus

US Patent 7532228 Method for setting laser power in optical disc drive

US Patent 7535483 Image forming apparatus and image forming method

US Patent 7537324 Liquid tank and ink jet printing apparatus

US Patent 7538788 Label writing

US Patent 7538789 Optical scanning device and image forming apparatus using the same

US Patent 7542062 Integrated circuit of an image forming apparatus having drive circuits

US Patent 7543908 Clearing silicate kogation

US Patent 7543910 Printer and printing method

US Patent 7545403 Optical system having image direction modulator and LITI apparatus including the system

US Patent 7548251 Image forming device and image forming display panel

US Patent 7551194 Optical writing device, image forming device, and optical writing method

US Patent 7557820 Optical multi-beam scanning device and image forming apparatus

US Patent 7557822 Apparatus for and method of forming image using oscillation mirror

US Patent 7557823 Image forming apparatus

US Patent 7561174 Optical media printing using a vibration signal

US Patent 7561175 Method and device for compensating for a temperature-dependent length change of the feed spindle of a printing plate exposer

US Patent 7561176 Laser power compensation in a scanning electrophotographic device

US Patent 7564473 Apparatus for forming latent image using line head and control method for such apparatus

US Patent 7564475 Compensation of high frequency banding in printing systems

US Patent 7567264 Collor image forming apparatus having magnification correction function

US Patent 7567266 Media labeling system

US Patent 7567267 System and method for calibrating a beam array of a printer

US Patent 7567268 Image forming apparatus and abnormality detecting method

US Patent 7570278 Optical scanning device and image forming apparatus

US Patent 7573495 Pixel circuit, light-emitting device, and image forming apparatus

US Patent 7573496 Scanning optical apparatus

US Patent 7576764 Device and method for controlling timing for starting image formation, and an image forming apparatus using such device and method

US Patent 7583282 Image printing apparatus and image printing method

US Patent 7583283 Exposure apparatus, image forming apparatus and heat adjustment method

US Patent 7583284 Method for arranging print head chips

US Patent 7585035 Marking device and method for golf ball

US Patent 7586511 Frequency modulation apparatus and frequency modulation method

US Patent 7586512 Image forming apparatus and image density controlling method

US Patent 7589755 Apparatus and method for recording image on photosensitive material

US Patent 7593029 Optical scanning device and image forming apparatus using the same

US Patent 7598972 Optical scanning device and image forming apparatus

US Patent 7598973 Line head and image forming apparatus incorporating the same

US Patent 7598974 Multi-beam optical scanning device

US Patent 7602410 Apparatus for and method of forming image using oscillation mirror

US Patent 7609285 Exposure device and image forming apparatus

US Patent 7611232 Multi-nozzle ink jet head

US Patent 7616225 Exposure system and production method for exposure system

US Patent 7619644 Method and apparatus for image alignment

US Patent 7623146 Optical disc image drawing method, optical disc image drawing program, and optical disc image drawing system

US Patent 7623147 Optical scanning device and image forming apparatus using the same

US Patent 7623148 Optical scanning apparatus, method of controlling amount of light, and image forming apparatus

US Patent 7626605 Apparatus for and method of forming image using oscillation mirror

US Patent 7626606 Light scanning apparatus, image forming apparatus equipped with such light scanning apparatus, and control method or image forming method for such image forming apparatus

US Patent 7629991 Writing controlling device and a color image forming apparatus

US Patent 7629992 Multibeam image forming apparatus

US Patent 7635174 Heater chip test circuit and methods for using the same

US Patent 7636101 MEMS scanner adapted to a laser printer

US Patent 7639272 Device and method for optical scanning

US Patent 7639274 Image forming apparatus with exposure units using oscillation mirrors and method for controlling drive frequencies of the oscillation mirrors

US Patent 7643046 Laser beam scanning device, image forming apparatus, and laser beam detecting method by the laser beam scanning device

US Patent 7643049 Method for manufacturing recording media, method for manufacturing production plate used when manufacturing recording media, apparatus for manufacturing recording media, and apparatus for manufacturing production plate used when manufacturing recording media

US Patent 7643050 Optical signal generating apparatus, optical signal generating method, and image forming apparatus

US Patent 7645013 Image recording apparatus

US Patent 7649543 Image forming device with LED array head

US Patent 7652682 Image forming apparatus

US Patent 7652683 Line head and image-forming apparatus

US Patent 7652684 Image forming apparatus and control method thereof having main scan length correcting feature

US Patent 7663657 Optical scanning device and image forming apparatus

US Patent 7667724 Customer replaceable unit with high voltage power supply

US Patent 7667727 Multiple-beam raster output scanner with a compensating filter

US Patent 7669977 Nozzle device with expansive chamber-defining layer

US Patent 7671882 Semiconductor laser modulation driving apparatus and image forming apparatus

US Patent 7671884 Rotary drive apparatus, optical scan apparatus, and image formation apparatus

US Patent 7671885 Ink-jet recording apparatus having curl restraining mechanism

US Patent 7675535 System and method for controlling a tracking servo during label printing

US Patent 7679634 Method and apparatus for image forming capable of detecting a reference signal for a lighting control

US Patent 7679635 Image forming apparatus, exposure apparatus and image forming method

US Patent 7683922 Exposure head and an image forming apparatus using the exposure head

US Patent 7688339 System for scribing a visible label

US Patent 7688341 Laser jet bow/tilt correction

US Patent 7688343 Device for measuring sheet length and image forming apparatus

US Patent 7692678 Laser light control device for image forming apparatus, and image forming apparatus

US Patent 7701479 System and method for laser write power calibration

US Patent 7701480 Light-source driving device, optical scanning device, and image forming apparatus

US Patent 7705866 Image forming apparatus with an image exposure unit light emission control feature

US Patent 7705867 Apparatus for forming latent image using line head and control method for such apparatus

US Patent 7705868 Light emitting array with improved characteristics, optical writing unit, and image forming apparatus

US Patent 7705869 Light shielding member, a line head and an image forming apparatus using the line head

US Patent 7705873 Image forming apparatus and multi-function device

US Patent 7710444 Image forming apparatus for forming a latent image on an image carrier

US Patent 7710445 Light source unit, optical scan apparatus, and image formation apparatus

US Patent 7719556 Method and apparatus for imaging with multiple exposure heads

US Patent 7719560 Line head and imaging apparatus incorporating the same

US Patent 7724275 Image forming apparatus and control method thereof

US Patent 7724276 Optical assembly lock/unlock apparatus and method

US Patent 7728859 Optical printhead

US Patent 7728860 Method for image processing and image processing apparatus

US Patent 7728861 Optical device

US Patent 7728863 Optical scanning device and image forming apparatus

US Patent 7731331 Method and device for ink-jet printing a moving web

US Patent 7733362 Optical writing device and image forming apparatus

US Patent 7733363 Line head and image forming device using the same

US Patent 7733364 Line head and an image forming apparatus using such a line head

US Patent 7738007 Optical scanning device and method for adjusting errors

US Patent 7742067 Image forming apparatus having a exposure control unit capable of changing an exposure ratio between a first exposure ratio and a second exposure ratio different from the first exposure ratio when a first exposure unit or second exposure unit exposes an image carrier on the basis of image data for forming an image with a certain density

US Patent 7746370 Image forming apparatus and method of controlling same

US Patent 7746372 Beam deflector, light scanning unit and image forming apparatus having the same

US Patent 7748839 Handheld printing with reference indicia

US Patent 7750929 Method for controlling image forming apparatus

US Patent 7750931 Optical scanning apparatus and image forming apparatus using the same

US Patent 7750932 Exposing device and image forming apparatus having the same

US Patent 7755658 Light beam scanning apparatus with electro-optic crystal

US Patent 7755659 Laser printer for braille

US Patent 7760217 Imaging methods and imaging devices

US Patent 7760223 Optical scan apparatus and image formation apparatus

US Patent 7760224 Exposure device and image forming apparatus with supporting member for focusing lens and light emitting element array

US Patent 7760226 ROS Deskew Mechanism with linear actuator

US Patent 7760227 Deflector, optical scanning unit, and image forming apparatus

US Patent 7760228 Light scanning apparatus and image forming apparatus

US Patent 7764300 Optical recording medium and data recording device

US Patent 7764302 Electrooptic device

US Patent 7777774 Image forming system employing effective optical scan-line control device

US Patent 7777775 Optical beam scanning apparatus, image forming apparatus

US Patent 7782351 Exposure head

US Patent 7782352 Optical scanning device and image forming apparatus

US Patent 7782354 Optical writing device and image forming apparatus

US Patent 7782355 Image forming apparatus using a plurality of lasers with a varying exposure ratio

US Patent 7787004 Line head and image forming apparatus using the same

US Patent 7787005 Print head and image forming device using the same

US Patent 7791628 Deviation amount detecting device, deviation amount detecting method, and computer-readable recording medium

US Patent 7791631 Line head, an exposure method using the line head, an image forming apparatus, an image forming method and a line head adjustment method

US Patent 7791632 Optical scanning device and image forming apparatus using the same

US Patent 7791634 Pixel clock generator, pulse modulator, and image forming apparatus

US Patent 7791635 Image forming apparatus and image forming method

US Patent 7791636 Scanning optical module and image forming apparatus equipped therewith

US Patent 7796150 Image forming apparatus with multi-color dot image formation

US Patent 7796151 Method and apparatus for printing with reflectivity

US Patent 7800639 Laser pulse image switches

US Patent 7804512 Method and apparatus for producing an image

US Patent 7804513 Optical writing unit, image forming apparatus, process cartridge, and method of adjusting light intensity

US Patent 7804514 Light beam scanning apparatus and image forming apparatus

US Patent 7804515 Image-forming device with scanner unit

US Patent 7808519 Line head and an image forming apparatus using the line head

US Patent 7808520 Exposure device, light emitting diode head, and image forming apparatus

US Patent 7812853 Device for setting up, adjusting and/or controlling an apparatus for processing printed products

US Patent 7825946 Image forming apparatus

US Patent 7825947 Optical scanning device and image forming apparatus using the same

US Patent 7830406 LED printer and print control method

US Patent 7834898 Image forming device, image forming method, and exposure head

US Patent 7834899 Laser marking system

US Patent 7834900 Method and apparatus for correcting banding defects in a photoreceptor image forming apparatus

US Patent 7834901 Image forming apparatus which executes an image quality control

US Patent 7834902 Pixel clock creation method, pixel clock creation device, optical scanning device, and image forming apparatus

US Patent 7839427 Multi-beam image forming apparatus configured to perform droop correction

US Patent 7843478 Recording medium drive apparatus, recording medium, and driving method for recording medium drive apparatus

US Patent 7843479 Method for providing a plurality of laser-printed labels from a medium supported on a disc

US Patent 7843480 Image-recording device for generating a number of image spots in projection line

US Patent 7843481 Light scanning device capable of producing non-coplanar scanning lines

US Patent 7843482 Multi-beam optical scanning device and image forming apparatus

US Patent 7843483 Image forming apparatus with a plurality of exposure units

US Patent 7847810 Image forming apparatus

US Patent 7852363 Light scanning apparatus, image forming apparatus, and light power control method

US Patent 7852364 Line head and an image forming apparatus using the line head

US Patent 7852365 Optical scanning apparatus and color image forming apparatus

US Patent 7859557 Method and apparatus for recording digital data on image-receiving medium

US Patent 7859558 Optical scanning device, control method thereof, and image forming apparatus therewith

US Patent 7864207 Optical disk drawing apparatus

US Patent 7868908 Image recording apparatus having a laser source

US Patent 7868909 Method and apparatus for multi-beam exposure

US Patent 7872664 Optical scanning device including shutter member that closes or opens an emission window and image forming apparatus including the optical scanning device

US Patent 7876349 Image forming apparatus for forming an image in an accurate position

US Patent 7880759 Line head and image forming device using the same

US Patent 7884842 Multi-beam scanning apparatus

US Patent 7889220 Device and method for maintaining optical energy density on a medium

US Patent 7889222 Lens array for a line head, a line head and an image forming apparatus

US Patent 7898561 MEMS mirror system for laser printing applications

US Patent 7898562 Exposing device and image forming apparatus

US Patent 7903134 Laser scanning apparatus having a photodetector having first and second light receiving units

US Patent 7903135 Optical scanning device and image forming apparatus for optimizing arrangement intervals in a main-scanning direction and a sub-scanning direction

US Patent 7903136 Scanning optical apparatus and image forming apparatus

US Patent 7907161 Adaptive correction system

US Patent 7907162 Exposure head, image forming device, and image forming method

US Patent 7907163 Lens sheet and printer

US Patent 7911491 Apparatus and method for controlling power of laser diode having optical power compensation

US Patent 7911492 Line head and image forming apparatus incorporating the same

US Patent 7916162 Light output device and image forming apparatus including the light output device

US Patent 7916163 Exposure head, a method of controlling an exposure head and an image forming apparatus

US Patent 7916164 Labeling methods and apparatus using energy of two wavelengths

US Patent 7920155 Image forming apparatus and method of controlling the same

US Patent 7920156 Image forming apparatus, image forming method and data control device

US Patent 7920157 Image forming apparatus that controls an exposure amount intensity for forming a first image formed of an equal or smaller number of consecutive dots than a predetermined number in a predetermined direction is higher than an electric intensity for forming a second

US Patent 7924301 Image forming apparatus for disk-shaped media

US Patent 7924302 Image recording apparatus with gas blowing device

US Patent 7924303 Line head controlling method and image forming method

US Patent 7924304 Light-emitting element array, drive controlling device, recording head, and image forming device

US Patent 7929006 Nonparallel beam scanning apparatus for laser printer

US Patent 7929007 Optical scanning device and image forming apparatus

US Patent 7929008 Line head and an image forming apparatus

US Patent 7936367 Image forming apparatus controlling the output level of the light source

US Patent 7940292 Optical scanning device and image forming apparatus

US Patent 7944462 Exposure head, image forming unit, and image forming apparatus

US Patent 7944463 Light scanning apparatus, image forming apparatus equipped with such light scanning apparatus, and control method or image forming method for such image forming apparatus

US Patent 7948512 Image forming apparatus with separate controllers for independently controlling an irradiating section

US Patent 7952600 Image forming method for forming images of plural colors on an image carrier at once

US Patent 7952601 Lens array, exposure head, and image forming apparatus

US Patent 7952602 Wide field diode-laser marker with swinging projection-optics

US Patent 7952603 Diode-laser marker with one-axis scanning mirror mounted on a translatable carriage

US Patent 7952604 Image forming apparatus

US Patent 7956884 Optical scanning device and image forming apparatus

US Patent 7956885 Lens array and line head

US Patent 7961209 Integrated circuit that emits light, optical head that incorporates the integrated circuit, and image forming apparatus that uses the optical head

US Patent 7961210 Optical scanner used in color image-forming device

US Patent 7961211 Optical scanning device and image forming apparatus

US Patent 7969460 Optical scanning device and image forming apparatus

US Patent 7973817 Pixel clock and pulse-modulation-signal generating device, optical scanner, and image forming apparatus

US Patent 7978213 Focus adjustment method of LED print head and image forming apparatus

US Patent 7978214 Apparatus and method of reducing banding artifact visibility in a scanning apparatus

US Patent 7982760 Optical scanning apparatus and technique for correcting optical characteristics in an image forming apparatus that employs an electrostatic recording method or an electrophotographic recording method

US Patent 7982761 Image forming apparatus having exposing unit positioning member

US Patent 7990406 Optical scanning device having a pitch adjustment device for adjusting a beam pitch and image forming apparatus including same

US Patent 7990407 Drive circuit, light print head, and image forming apparatus

US Patent 7995082 Three-dimensional recording and reproducing apparatus

US Patent 7995084 Line head and an image forming apparatus using the line head

US Patent 7995085 Line head, and an image forming apparatus using the line head

US Patent 7995086 Image forming apparatus, image forming method and image processing apparatus

US Patent 7995089 Motor polygon assembly (MPA) facet reflectivity mapping

US Patent 7999837 Exposure head, image forming apparatus, and image forming method

US Patent 7999838 Line head, image forming apparatus incorporating the same, and method of adjusting position of the same

US Patent 8004546 Deviation amount detecting device, deviation amount detecting method, and computer-readable recording medium

US Patent 8004549 Line head and an image forming apparatus using the line head

US Patent 8004550 Light-emitting element head, image forming apparatus and signal supply method

US Patent 8004551 ROS deskew mechanism

US Patent 8004552 Optical scanning device and image forming apparatus

US Patent 8004553 Optical scanning device, optical scanning method, and image forming apparatus, using the optical scanning device

US Patent 8004554 Plastic optical element, optical scanning device, and image forming apparatus using the optical scanning device

US Patent 8009186 Image forming apparatus

US Patent 8009187 Lens sheet and printer