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. 17, 2025
Filed:
May. 27, 2022
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Shotaro Hirata, Tokyo, JP;
Masayuki Motoya, Tokyo, JP;
Kosuke Okahashi, Tokyo, JP;
Yu Kataoka, Tokyo, JP;
Shingo Takano, Tokyo, JP;
SUMITOMO OSAKA CEMENT CO., LTD., Tokyo, JP;
Abstract
There is provided an optical waveguide device including a substrate, an optical waveguide formed on the substrate, and a working electrode that controls a light wave propagating through the optical waveguide, in which the working electrode includes a first base layer made of a first material, and a first conductive layer on the first base layer, and a conductor pattern including a second base layer made of a second material different from the first material and a second conductive layer on the second base layer is formed in a region other than a path from an input end to an output end of the optical waveguide, in a region on the substrate.