Inventor
TAKAMI YUTAKA
JP35 patents
⚠️ This page may combine multiple inventors who share the name “TAKAMI YUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
31 patentsUS6345263B1Feb 5, 2002
Electronic purse application system and method thereof
HITACHI LTD112 citations98
US5992738ANov 30, 1999
IC card automated transaction terminal and IC card used therein
HITACHI LTD110 citations98
US6016956AJan 25, 2000
Electronic money transaction system with a radio transmitter and receiver using a portable telephone
HITACHI LTD74 citations96
US5838059ANov 17, 1998
Multichip IC card and IC card system using it
HITACHI LTD56 citations96
US6484946B2Nov 26, 2002
IC card information display device and IC card for use therewith
HITACHI LTD76 citations95
US6367696B1Apr 9, 2002
IC card processing device, automatic vending device, and selling method
HITACHI LTD77 citations95
US6634549B1Oct 21, 2003
IC card automated transaction terminal and IC used therein
HITACHI LTD21 citations93
US6536661B1Mar 25, 2003
Electronic money transaction system with a radio transmitter and receiver using a portable telephone
HITACHI LTD21 citations93
US6189782B1Feb 20, 2001
Electronic purse
HITACHI LTD15 citations93
US7360091B2Apr 15, 2008
Secure data transfer method of using a smart card
HITACHI LTD51 citations92
US6840448B2Jan 11, 2005
Portable information processing apparatus
HITACHI LTD30 citations92
US6425522B1Jul 30, 2002
IC card information processing system, and apparatus and cards for the same
HITACHI LTD34 citations92
US6359699B1Mar 19, 2002
IC card processing system and processing method
HITACHI LTD41 citations92
US6199755B1Mar 13, 2001
Machine data acquistion system and method
HITACHI LTD28 citations92
US5748238AMay 5, 1998
Video camera
HITACHI LTD30 citations92
US7346579B2Mar 18, 2008
Electronic purse application system and method thereof
HITACHI LTD9 citations84
US7737824B2Jun 15, 2010
Radio frequency identification (RFID) tag, portable terminal, and server for RFID tag
HITACHI LTD15 citations82
US6732272B1May 4, 2004
Program writable integrated circuit card and method therefore
HITACHI LTD5 citations74
US6505297B1Jan 7, 2003
IC card terminal device and installation of application program into IC card terminal device
HITACHI LTD9 citations73
US5565919AOct 15, 1996
Video camera/VTR and camera station with opto-electronic link between camera/VTR and camera station
HITACHI LTD13 citations73
US7425897B2Sep 16, 2008
Radio frequency identification (RFID) device with a response stop command
HITACHI LTD8 citations72
US7628323B2Dec 8, 2009
System of settlement transaction and method
HITACHI LTD2 citations63
US7246739B2Jul 24, 2007
System of settlement transaction and method
HITACHI LTD2 citations63
US6382505B1May 7, 2002
Electronic purse
HITACHI LTD3 citations63
US7611047B2Nov 3, 2009
System of settlement transaction and method
HITACHI LTD0 citations52
US6902106B2Jun 7, 2005
Electronic money transaction system with a radio transmitter and receiver using a portable telephone
HITACHI LTD0 citations52
US6827258B2Dec 7, 2004
Electronic purse
HITACHI LTD0 citations52
US7710272B2May 4, 2010
Radio frequency identification (RFID) device with a response stop command
HITACHI LTD0 citations51
US8001326B2Aug 16, 2011
Portable terminal
HITACHI LTD0 citations49
US7356645B2Apr 8, 2008
Portable terminal with an IC card mounted thereon
HITACHI LTD0 citations49
US7404523B2Jul 29, 2008
IC card with a cipher key conversion function
HITACHI LTD0 citations41