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:
Jun. 08, 2010
Filed:
May. 09, 2008
Hideki Yonekura, Nagano, JP;
Kazunao Yamamoto, Nagano, JP;
Takanori Yamamoto, Nagano, JP;
Kenji Yanagisawa, Nagano, JP;
Hideki Yonekura, Nagano, JP;
Kazunao Yamamoto, Nagano, JP;
Takanori Yamamoto, Nagano, JP;
Kenji Yanagisawa, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano, JP;
Abstract
An optical waveguide includes an optical waveguide main body and mirrors. The optical waveguide main body includes a first cladding layer, a second cladding layer and a core portion provided between the first cladding layer and the second cladding layer. The optical waveguide main body has a first region in which the core portion and the mirrors are arranged and the light signal is transmitted, and a second region arranged on both sides of the first region and not contributing to a transmission of a light signal. Through vias that pass through the optical waveguide main body is provided in the second region. The first region on a side that faces the light emitting element or the light receiving element is protruded larger than the second region on a side that faces the light emitting element or the light receiving element.