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:
Sep. 20, 2022
Filed:
Oct. 02, 2020
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Tomoyoshi Tai, Inazawa, JP;
Yudai Uno, Nagoya, JP;
Jungo Kondo, Miyoshi, JP;
Yoshimasa Kobayashi, Nagoya, JP;
Tatsuya Hishiki, Nagoya, JP;
Hiroharu Kobayashi, Kasugai, JP;
Assignee:
NGK INSULATORS, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01);
U.S. Cl.
CPC ...
G02F 1/035 (2013.01); G02F 2202/20 (2013.01);
Abstract
A bonded body for an optical modulator includes a supporting substrate, an optical waveguide material provided on the supporting substrate and composed of lithium niobate, lithium tantalate and lithium niobate-lithium tantalate, and an optical waveguide in the optical waveguide material. The supporting substrate is composed of a material selected from the group consisting of magnesium oxide and a magnesium-silicon composite oxide.