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. 29, 2018
Filed:
Mar. 09, 2017
Shinko Electric Industries Co., Ltd., Nagano-shi, Nagano, JP;
Kazunao Yamamoto, Nagano, JP;
SHINKO ELECTRIC INDUSTRIES CO., LTD., Nagano-Shi, JP;
Abstract
An optical waveguide device includes a wiring substrate, a first cladding layer formed on the wiring substrate, a base protective layer formed on the first cladding layer and formed into a certain pattern, a core layer formed on the first cladding layer and the base protective layer, a recess portion having an inclined surface and formed from the core layer to the base protective layer, an optical path conversion mirror formed on the inclined surface, and a second cladding layer formed on the first cladding layer and the core layer. A refractive index of the base protective layer is smaller than a refractive index of the core layer. A width of the base protective layer is equal to or greater than a width of the core layer.