Inventor
OKAMOTO CHIKASHI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO CHIKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS6922686B2Jul 26, 2005
Database integration management method and apparatus and processing program, medium therefor
HITACHI LTD121 citations97
US6592032B1Jul 15, 2003
Control system and method of controlling information written into storage media
HITACHI LTD42 citations96
US6934842B2Aug 23, 2005
Identification code management method and management system
HITACHI LTD32 citations92
US6659353B1Dec 9, 2003
Method of checking authenticity of sheet with built-in electronic circuit chip
HITACHI LTD31 citations92
US7178026B2Feb 13, 2007
Identification code management method and management system
HITACHI LTD11 citations84
US7089388B1Aug 8, 2006
Terminal for use in a system interfacing with storage media
HITACHI LTD11 citations84
US7617975B2Nov 17, 2009
Service providing system and method
HITACHI LTD13 citations80
US7330949B2Feb 12, 2008
Terminal for use in a system interfacing with storage media
HITACHI LTD8 citations74
US7590842B2Sep 15, 2009
Service providing system and authentication system, as well as signature generating apparatus, service utilizing apparatus and verification apparatus
HITACHI LTD4 citations62
US7562231B2Jul 14, 2009
Apparatus and system for recording and reproducing contents
HITACHI LTD3 citations62
US7549208B2Jun 23, 2009
Method of mounting electronic circuit chip
HITACHI LTD3 citations62
US7392538B2Jun 24, 2008
Firewall apparatus
HITACHI LTD4 citations62
US7309019B2Dec 18, 2007
Method of checking authenticity of sheet with built-in electronic circuit chip
HITACHI LTD3 citations62
US6854062B2Feb 8, 2005
Electronic device and communication method using bridging medium
HITACHI LTD5 citations62
US6731509B1May 4, 2004
Method for mounting electronic circuit chip
HITACHI LTD5 citations62
US7861284B2Dec 28, 2010
Control method and system of customer premises apparatus and gateway
HITACHI LTD5 citations60
US7333972B2Feb 19, 2008
Database integration management method and apparatus and processing program, medium therefor
HITACHI LTD0 citations51