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. 26, 2026
Filed:
Jun. 21, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Takekazu Yamane, Tokyo, JP;
Hideaki Fukuzawa, Tokyo, JP;
Tetsuya Shibata, Tokyo, JP;
Tomohito Mizuno, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10F 77/40 (2025.01); G01R 33/00 (2006.01); H01F 10/32 (2006.01);
U.S. Cl.
CPC ...
H10F 77/40 (2025.01); H01F 10/3254 (2013.01); G01R 33/0052 (2013.01);
Abstract
A light detection element includes: a plurality of magnetic elements, wherein each of the magnetic elements includes a first ferromagnetic layer that is irradiated with light and a second ferromagnetic layer and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, and wherein at least two of the magnetic elements are arranged to be inside a spot of the light applied to the first ferromagnetic layers of the at least two of the magnetic elements.