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. 04, 2025
Filed:
Mar. 15, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Tetsuya Shibata, Tokyo, JP;
Hideaki Fukuzawa, Tokyo, JP;
Takashi Kikukawa, Tokyo, JP;
Tomohito Mizuno, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/05 (2006.01); H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0508 (2013.01); G02F 1/0516 (2013.01); H01S 5/0085 (2013.01);
Abstract
An optical device that includes at least one magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer; a substrate; and a waveguide is provided, wherein the waveguide and the magnetic element are located on or above the substrate, and wherein at least some of light propagating in the waveguide is applied to the magnetic element.