Inventor
KURODA YASUTSUGU
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KURODA YASUTSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
12 patentsUS6421779B1Jul 16, 2002
Electronic data storage apparatus, system and method
FUJITSU LTD187 citations98
US6915434B1Jul 5, 2005
Electronic data storage apparatus with key management function and electronic data storage method
FUJITSU LTD408 citations97
US6658403B1Dec 2, 2003
Apparatus and method for managing electronic original data
FUJITSU LTD75 citations97
US6505213B1Jan 7, 2003
File management apparatus and method
FUJITSU LTD57 citations96
US6470448B1Oct 22, 2002
Apparatus and method for proving transaction between users in network environment
FUJITSU LTD146 citations96
US5935248AAug 10, 1999
Security level control apparatus and method for a network securing communications between parties without presetting the security level
FUJITSU LTD79 citations96
US5642420AJun 24, 1997
Cryptoinformation repeater, subscriber terminal connected thereto, and cryptocommunication method
FUJITSU LTD60 citations96
US6185308B1Feb 6, 2001
Key recovery system
FUJITSU LTD77 citations95
US6345360B1Feb 5, 2002
Apparatus method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions
FUJITSU LTD25 citations92
US6260145B1Jul 10, 2001
System and method of authentication of digital information
FUJITSU LTD50 citations92
US6584563B1Jun 24, 2003
User support system for cryptographic communication in network systems
FUJITSU LTD12 citations72
US6922775B2Jul 26, 2005
User support system for cryptographic communication in network systems
FUJITSU LTD0 citations40