The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 1999
Filed:
Sep. 22, 1997
Applicant:
Inventor:
Mitsuhiro Sugiyama, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 49 ; 385 52 ; 385 88 ; 257432 ;
Abstract
The present invention provides a semiconductor photodetector formed over a substrate and being positioned adjacent to an optical fiber guiding groove also formed in said substrate bounding structure, said semiconductor photodetector having an optical waveguide layer including an optical absorption layer, wherein an edge portion of said optical waveguide layer is bounded to a side portion of said optical fiber guiding groove through an insulation layer having an refractive index higher than any parts of said optical waveguide layer.
Sugiyama, Mitsuhiro. (1999). Silicon-based semiconductor photodetector with an improved optical fiber (U.S. Patent No. 5999675). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5999675
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile