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:
Jul. 01, 2025
Filed:
Jul. 19, 2023
The University of Tokyo, Tokyo, JP;
Satoru Nakatsuji, Tokyo, JP;
Junji Yumoto, Tokyo, JP;
Ryo Shimano, Tokyo, JP;
Masamitsu Hayashi, Tokyo, JP;
Mitsuru Takenaka, Tokyo, JP;
Yusuke Horinouchi, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Abstract
A photonic spin register includes: a shift register unit including a magnetic material layer having a shape extending in one direction; and a write unit configured to write spin information into a magnetic domain in the magnetic material layer by transferring information included in an optical signal that is a pulse amplitude-modulated and serial input signal, to a spin state of the magnetic domain in the magnetic material layer by means of a photocurrent corresponding to the optical signal or by irradiation with the optical signal. When a shift current flows through the shift register unit in the one direction, a domain wall is configured to move in the magnetic material layer, thereby allowing the spin information to move and be buffered in the magnetic material layer.