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:
Jul. 31, 2012
Filed:
Jul. 29, 2010
Akiyoshi Ide, West Bloomfield, MI (US);
Jungo Kondo, Miyoshi, JP;
Osamu Mitomi, Sagamihara, JP;
Yasunori Iwasaki, Kitanagoya, JP;
Kenji Aoki, Nagoya, JP;
Akiyoshi Ide, West Bloomfield, MI (US);
Jungo Kondo, Miyoshi, JP;
Osamu Mitomi, Sagamihara, JP;
Yasunori Iwasaki, Kitanagoya, JP;
Kenji Aoki, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
An optical waveguide device includes a substrate of a ferroelectric material, at least a pair of electrodesA,B provided on one main face of the substrate, and a channel-type optical waveguideA formed in a gapof the pair of the electrodes. The optical waveguideA has a curved part. A central line C of the gapis provided outside of a center line WC of the optical waveguide with respect to the center O of curvature of the curved part