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:
Mar. 08, 2011
Filed:
Aug. 17, 2006
Keiichi Kuramoto, Kadoma, JP;
Hiroaki Izu, Hirakata, JP;
Mitsuaki Matsumoto, Osaka, JP;
Koji Yamano, Hirakata, JP;
Hitoshi Hirano, Nishinomiya, JP;
Youhei Nakagawa, Hirakata, JP;
Keiichi Kuramoto, Kadoma, JP;
Hiroaki Izu, Hirakata, JP;
Mitsuaki Matsumoto, Osaka, JP;
Koji Yamano, Hirakata, JP;
Hitoshi Hirano, Nishinomiya, JP;
Youhei Nakagawa, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An optical waveguide in which a groove is formed on the top surface of a substrate used as a lower clad and a core is formed in the groove, characterized in that the core is formed in such a way that the top face of the core within the groove is at a lower level than the top face of the substrate, and an upper clad may also be provided on the core, and the core is preferably formed from an organic-inorganic hybrid material.