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:
Feb. 27, 2007
Filed:
Sep. 06, 2001
Osamu Mitomi, Nagoya, JP;
Takenori Ichigi, Konan, JP;
Masatsugu Oshima, Nagoya, JP;
Jun Okumura, Nagoya, JP;
Masataka Yamashita, Nagoya, JP;
Osamu Mitomi, Nagoya, JP;
Takenori Ichigi, Konan, JP;
Masatsugu Oshima, Nagoya, JP;
Jun Okumura, Nagoya, JP;
Masataka Yamashita, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
An optical device includes an optical input waveguide, a branch/cross waveguide, an optical output waveguide and connection waveguides that connect the optical input and optical output waveguides to the cross/branch waveguide. The spot size of light propagating through the cross/branch waveguide is larger than the spot size of light propagating through optical input waveguides, the optical output waveguides, or the connection waveguides.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile