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:
Nov. 21, 2023
Filed:
Dec. 12, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Takeshi Nojiri, Tokyo, JP;
Hideaki Fukuzawa, Tokyo, JP;
Tetsuya Shibata, Tokyo, JP;
Tomohito Mizuno, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01); G02B 6/42 (2006.01); H10N 50/80 (2023.01);
U.S. Cl.
CPC ...
G01J 1/4257 (2013.01); G02B 6/4298 (2013.01); H10N 50/80 (2023.02);
Abstract
The light detection element includes a magnetic element and an optical waveguide. The magnetic element includes a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer. The optical waveguide includes at least a core and a cladding covering at least a part of the core. Light that has propagated through the optical waveguide is applied to the magnetic element.