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:
Aug. 12, 2025
Filed:
Mar. 29, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Hiroshi Take, Hong Kong, CN;
Kenji Nagase, Hong Kong, CN;
Anthony Reymund Melad Binarao, Hong Kong, CN;
Cheng Bu Heng, Hong Kong, CN;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); G02F 1/21 (2006.01); G02F 1/225 (2006.01);
U.S. Cl.
CPC ...
G02F 1/035 (2013.01); G02F 1/212 (2021.01); G02F 1/225 (2013.01); G02F 2202/20 (2013.01);
Abstract
An electro-optical device includes a substrate, an optical waveguide formed on the substrate, a buffer layer formed on the substrate which is provided so as to cover the optical waveguide and an electrode formed on the buffer layer, when viewed in a propagation direction of light, a side surface of the optical waveguide has at least one slope change point. An electro-optical device can reduce the driving voltage and the propagation loss of light.