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:
Mar. 24, 2026
Filed:
May. 21, 2024
Axell Corporation, Tokyo, JP;
Yusuke Hoshizuki, Tokyo, JP;
Kotaro Matsuoka, Tokyo, JP;
AXELL CORPORATION, Tokyo, JP;
Abstract
An encryption processing apparatus processing a hully homomorphic ciphertext includes a processor. The processor obtains, based on a subtraction result of homomorphic subtraction of a second ciphertext from a first ciphertext, a binary third ciphertext determining whether the subtraction result is positive or negative. The processor then performs a process that subtracts a result of homomorphic multiplication between the third ciphertext and the second ciphertext from the first ciphertext in a homomorphic manner to obtain a new ciphertext. The processor obtains a new third ciphertext by using a process result of the process as a new first ciphertext, and repeats the process using the new first ciphertext, the second ciphertext, and the new third ciphertext. The processor outputs the new ciphertext obtained after a predetermined number of repetitions of the process in total, as a result of a remainder operation of the first ciphertext by the second ciphertext.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile