Inventor
KUSAKI TSUTOMU
JP15 patents
⚠️ This page may combine multiple inventors who share the name “KUSAKI TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6263204B1Jul 17, 2001
Switching center for mobile handover
HITACHI LTD97 citations99
US6754495B2Jun 22, 2004
Handover method in mobile communication system
HITACHI LTD39 citations96
US6108546AAug 22, 2000
Handover method in mobile communication system
HITACHI LTD33 citations96
US5749053AMay 5, 1998
Mobile communication network and control method thereof
HITACHI LTD70 citations93
US6259920B1Jul 10, 2001
Handover method in mobile communication system
HITACHI LTD22 citations92
US5983107ANov 9, 1999
Mobile radio communications system
HITACHI LTD24 citations92
US5732073AMar 24, 1998
Slots assignment method for control channel signal in mobile telecommunication system and base station employing the slots assignment method
HITACHI LTD80 citations92
US6289008B1Sep 11, 2001
Communication system
HITACHI LTD11 citations74
US6178165B1Jan 23, 2001
Communication system
HITACHI LTD9 citations74
US6049534AApr 11, 2000
Communication system
HITACHI LTD6 citations74
US5991379ANov 23, 1999
Radio communication system authenticating a personal station and calculating a fee of a telephone call from the personal station
HITACHI LTD6 citations73
US6795414B1Sep 21, 2004
Communication system
HITACHI LTD2 citations63
US6333977B1Dec 25, 2001
Communication method authenticating a personal station and calculating a fee of a telephone call from the personal station
HITACHI LTD2 citations62
US7079513B2Jul 18, 2006
Communication system
HITACHI LTD0 citations52