Inventor
KOSEKI YOSHIHIRO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KOSEKI YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
16 patentsUS11824638B2Nov 21, 2023
Re-encryption device, method and computer readable medium to change the access range for ciphertext
MITSUBISHI ELECTRIC CORP2 citations72
US11374742B2Jun 28, 2022
Conversion key generation device, ciphertext conversion device, privacy-preserving information processing system, conversion key generation method, ciphertext conversion method, and computer
MITSUBISHI ELECTRIC CORP2 citations71
US10872158B2Dec 22, 2020
Secret search system, secret search method, and computer readable medium
MITSUBISHI ELECTRIC CORP2 citations70
US11349654B2May 31, 2022
Re-encryption key generation device, re-encryption device, re-encrypted ciphertext decryption device, and cryptographic system
MITSUBISHI ELECTRIC CORP0 citations62
US12537826B2Jan 27, 2026
Attack detection device, adversarial sample patch detection system, attack detection method, and non-transitory computer readable medium
MITSUBISHI ELECTRIC CORP0 citations51
US12216787B2Feb 4, 2025
Searchable encryption system, searchable encryption method, and non-transitory computer-readable recording medium
MITSUBISHI ELECTRIC CORP0 citations51
US12061604B2Aug 13, 2024
Searchable encryption system
MITSUBISHI ELECTRIC CORP0 citations51
US11902418B2Feb 13, 2024
Registration device, search operation device, and data management device
MITSUBISHI ELECTRIC CORP0 citations51
US11831769B2Nov 28, 2023
Registration device, server device, searchable encryption system, and searchable encryption method
MITSUBISHI ELECTRIC CORP0 citations51
US11451372B2Sep 20, 2022
Privacy-preserving analysis device, privacy-preserving analysis system, privacy-preserving analysis method, and computer readable medium
MITSUBISHI ELECTRIC CORP0 citations51
US11360978B2Jun 14, 2022
Search device, tag generation device, query generation device, searchable encryption system and computer readable medium
MITSUBISHI ELECTRIC CORP0 citations51
US11233629B2Jan 25, 2022
Registration apparatus, search operation apparatus, data management apparatus
MITSUBISHI ELECTRIC CORP0 citations51
US11170123B2Nov 9, 2021
Registration terminal, key server, search system, and computer readable medium
MITSUBISHI ELECTRIC CORP0 citations51
US11106740B2Aug 31, 2021
Search device, search system, search method, and computer readable medium
MITSUBISHI ELECTRIC CORP0 citations51
US10936757B2Mar 2, 2021
Registration destination determination device, searchable encryption system, destination determination method, and computer readable medium
MITSUBISHI ELECTRIC CORP0 citations51
US10778431B2Sep 15, 2020
Encrypted text conversion device, computer readable medium, and encryption text conversion method
MITSUBISHI ELECTRIC CORP0 citations41