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:
Oct. 13, 2026
Filed:
Jul. 01, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Masashi Ito, Kawasaki Kanagawa, JP;
Katsuyuki Kimura, Kamakura Kanagawa, JP;
Koji Kanazawa, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Kawasaki, JP;
Abstract
According to an embodiment, a key management server device includes processing circuitry is configured to: receive, from a plurality of key generation nodes, quantum key distribution (QKD) keys generated through a key distillation process for QKD; identify QKD keys to be specified as targets for shaping processing with a partner key management server device, by exchanging identification information of the QKD keys with the partner key management server device; perform numbering in such a way that order of dividing a QKD key or of coupling a QKD key with a part of a QKD key that is not used in previous shaping processing is identical with the partner key management server device; and perform shaping processing for shaping key lengths of QKD keys to a fixed length by performing the division or the coupling in the order.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile