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:
May. 01, 2018
Filed:
Nov. 30, 2016
Applicant:
Shinko Electric Industries Co., Ltd., Nagano-shi, Nagano, JP;
Inventor:
Kenji Yanagisawa, Nagano, JP;
Assignee:
SHINKO ELECTRIC INDUSTRIES CO., LTD., Nagano-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/12 (2006.01); G02B 6/122 (2006.01); G02B 6/132 (2006.01); G02B 6/30 (2006.01);
U.S. Cl.
CPC ...
G02B 6/122 (2013.01); G02B 6/132 (2013.01); G02B 6/305 (2013.01); G02B 2006/12111 (2013.01);
Abstract
A light waveguide includes a first cladding layer, a groove formed in the first cladding layer, a core layer embedded in the groove, and a second cladding layer formed on the first cladding layer and the core layer. A width and thickness of one end of the core layer are larger than a width and thickness of the other end of the core layer.