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List of Keiwa College patents

List of Keiwa College patents
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Patents where
Current Assignee
Name
is
Keiwa CollegeKeiwa College
Name
Description
Patent Applicant
Current Assignee
Inventor
Patent Jurisdiction
Patent Number
Date of Patent
‌
US Patent 10222518 Light diffusion sheet for overlaying, and backlight unit

Patent 10222518 was granted and assigned to Keiwa College on March, 2019 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10222518
March 5, 2019
‌
US Patent 11143914 Multilayer of light diffusers, backlight unit, and liquid crystal display device

Patent 11143914 was granted and assigned to Keiwa College on October, 2021 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
11143914
October 12, 2021
‌
US Patent 10386567 Optical sheet for liquid crystal display device, backlight unit for liquid crystal display device and production method of optical sheet for liquid crystal display device

Patent 10386567 was granted and assigned to Keiwa College on August, 2019 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10386567
August 20, 2019
‌
US Patent 9588277 Optical waveguide sheet, backlight unit, and portable terminal

Patent 9588277 was granted and assigned to Keiwa College on March, 2017 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9588277
March 7, 2017
‌
US Patent 9581753 Optical waveguide sheet, edge-lit backlight unit and laptop computer

Patent 9581753 was granted and assigned to Keiwa College on February, 2017 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9581753
February 28, 2017
‌
US Patent 10459151 Optical sheet for liquid crystal display device, and backlight unit for liquid crystal display device

Patent 10459151 was granted and assigned to Keiwa College on October, 2019 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10459151
October 29, 2019
‌
US Patent 10539721 Diffusion sheet, backlight unit, and liquid crystal display device

Patent 10539721 was granted and assigned to Keiwa College on January, 2020 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10539721
January 21, 2020
‌
US Patent 10401553 Liquid crystal display device and turning film for liquid crystal display device

Patent 10401553 was granted and assigned to Keiwa College on September, 2019 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10401553
September 3, 2019
‌
US Patent 9448341 View angle-restriction sheet and flat panel display

Patent 9448341 was granted and assigned to Keiwa College on September, 2016 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9448341
September 20, 2016
‌
US Patent 10315396 Sheet for image display unit, laminate for image display unit, and image display unit

Patent 10315396 was granted and assigned to Keiwa College on June, 2019 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10315396
June 11, 2019
‌
US Patent 9507058 View angle-restricting sheet and flat panel display

Patent 9507058 was granted and assigned to Keiwa College on November, 2016 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9507058
November 29, 2016
‌
US Patent 8928843 Liquid crystal display module comprising a transparent media layer interposed between a reflection polarizing plate and an optical sheet

Patent 8928843 was granted and assigned to Keiwa College on January, 2015 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
8928843
January 6, 2015
‌
US Patent 9405054 Light guide film, backlight unit for ultrathin liquid crystal display device and mobile computer, and method for producing light guide film

Patent 9405054 was granted and assigned to Keiwa College on August, 2016 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9405054
August 2, 2016
‌
US Patent 9568651 View angle-restricting sheet and flat panel display

Patent 9568651 was granted and assigned to Keiwa College on February, 2017 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9568651
February 14, 2017
‌
US Patent 9823390 Optical sheet and edge-lit backlight unit

Patent 9823390 was granted and assigned to Keiwa College on November, 2017 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9823390
November 21, 2017
‌
US Patent 9753320 Light diffusion sheet, and backlight unit for liquid crystal display device

Patent 9753320 was granted and assigned to Keiwa College on September, 2017 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9753320
September 5, 2017
‌
US Patent 10345644 Liquid crystal display device and turning film for liquid crystal display device

Patent 10345644 was granted and assigned to Keiwa College on July, 2019 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10345644
July 9, 2019
‌
US Patent 9020315 Optical sheet, backlight unit using the same and method for producing the same

Patent 9020315 was granted and assigned to Keiwa College on April, 2015 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9020315
April 28, 2015
‌
US Patent 7986388 Substrate film for optical sheets, optical sheet, and liquid crystal display module

Patent 7986388 was granted and assigned to Keiwa College on July, 2011 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
7986388
July 26, 2011
‌
US Patent 10754083 Optical sheet for backlight unit and backlight unit

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10754083
August 25, 2020
‌
US Patent 10718892 Backlight unit and liquid crystal display device

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10718892
July 21, 2020
‌
US Patent 9507075 Optical sheet for use in an edge light type backlight unit

Patent 9507075 was granted and assigned to Keiwa College on November, 2016 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
9507075
November 29, 2016
‌
US Patent 10677973 Polarizer protective sheet, polarizer, and liquid crystal display device

Patent 10677973 was granted and assigned to Keiwa College on June, 2020 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10677973
June 9, 2020
‌
US Patent 10802335 Light diffusion plate and direct-lit backlight unit

Patent 10802335 was granted and assigned to Keiwa College on October, 2020 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10802335
October 13, 2020
‌
US Patent 10072175 Glass plate substitute film, and display device

Patent 10072175 was granted and assigned to Keiwa College on September, 2018 by the United States Patent and Trademark Office.

Keiwa College
Keiwa College
Keiwa College
Keiwa College
United States Patent and Trademark Office
United States Patent and Trademark Office
10072175
September 11, 2018
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