US Patent 7755978 Recording head and recorder

Patent 7755978 was granted and assigned to Konica Minolta on July, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Konica Minolta

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7755978

Date of Patent

July 13, 2010

Patent Application Number

11717581

Date Filed

March 13, 2007

Patent Primary Examiner

‌

Thang V. Tran

Patent abstract

A recorder has a recording head which uses light for information recording to a recording medium. The recording head has a slider and an optical waveguide. The slider moves relative to the recording medium while floating thereon. The optical waveguide is provided in the slider and has a refractive index difference of 20% or more between a core and a cladding.