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. 07, 2006
Filed:
Jan. 25, 2005
Hidehiko Nakata, Isehara, JP;
Satoshi Ide, Kawasaki, JP;
Hidehiko Nakata, Isehara, JP;
Satoshi Ide, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical waveguide device serving as a planar lightwave circuit, and an optical waveguide device which enables an attempt to realize greater functionality as a planar optical waveguide device. An optical waveguide device is configured to have a first cladding layer, a core formed on the first cladding layer for guiding light, and a second cladding layer formed on the first cladding layer and the core so as to surround the core, wherein the core comprises a trunk portion constituting a body of the core and a layered structure portion essentially perpendicular to a plane forming the first cladding layer.