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. 30, 2014
Filed:
May. 14, 2012
Hideki Yonekura, Nagano, JP;
Kenji Yanagisawa, Nagano, JP;
Kazunao Yamamoto, Nagano, JP;
Mieko Yamamoto, Nagano, JP;
Takanori Yamamoto, Nagano, JP;
Hideki Yonekura, Nagano, JP;
Kenji Yanagisawa, Nagano, JP;
Kazunao Yamamoto, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano-shi, JP;
Abstract
An optical wave guide includes an optical waveguide layer in which a core layer is surrounded by a cladding layer, a light path converting portion provided to a light entering side and a light emitting side of the optical waveguide layer respectively, a light entering portion demarcated in an outer surface of the cladding layer, in which a light is entered to the light path converting portion of the light entering side; and a light emitting portion demarcated in an outer surface of the cladding layer, in which a light from the light path converting portion of the light emitting side is emitted, wherein an outer surface of the cladding layer except the light entering portion and the light emitting portion is formed as a roughened surface.