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. 27, 2014
Filed:
Dec. 14, 2011
Kazunao Yamamoto, Nagano, JP;
Hideki Yonekura, Nagano, JP;
Kenji Yanagisawa, Nagano, JP;
Takanori Yamamoto, Nagano, JP;
Kazunao Yamamoto, Nagano, JP;
Hideki Yonekura, Nagano, JP;
Kenji Yanagisawa, Nagano, JP;
Takanori Yamamoto, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano-shi, JP;
Abstract
A two-layer optical waveguide includes a core layer having a first surface and a second surface opposite to the first surface, and a cladding layer laminated on the first surface of the core layer. The two-layer optical waveguide further includes a mirror structure provided at a plurality of positions on the first surface of the core layer, the mirror structure directing a light signal which travels in the core layer, toward the second surface of the core layer. Each mirror structure includes an inclined plane formed on the first surface of the core layer, and a metal film formed on the inclined plane.