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:
May. 06, 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;
Atsushi Shimura, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/225 (2005.12); G02B 6/12 (2005.12); G02B 6/122 (2005.12); G02F 1/03 (2005.12); G02F 1/035 (2005.12); G02F 1/21 (2005.12);
U.S. Cl.
CPC ...
G02F 1/035 (2012.12); G02B 6/122 (2012.12); G02F 1/0305 (2012.12); G02F 1/212 (2020.12); G02F 1/225 (2012.12); G02B 2006/12097 (2012.12); G02F 2202/20 (2012.12);
Abstract
The optical device includes a substrate and an optical waveguide formed on the substrate, a protrusion portion is formed on the substrate adjacent to the optical waveguide. Accordingly, an optical device which can achieve further suppression of the light propagation loss and higher reliability is provided.