Inventor
ITOH FUMITAKA
JP10 patents
⚠️ This page may combine multiple inventors who share the name “ITOH FUMITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS6275690B1Aug 14, 2001
Cellular mobile telephone apparatus
HITACHI LTD51 citations95
US6799034B2Sep 28, 2004
Response message transmitter and response message transmitting method in cellular mobile telephone apparatus and recording medium recording program for executing the method
HITACHI LTD18 citations92
US6539218B2Mar 25, 2003
Message transmitter and response message transmitting method in cellular mobile telephone apparatus and recording medium recording program for executing the method
HITACHI LTD26 citations92
US6823182B1Nov 23, 2004
Cellular mobile telephone apparatus
HITACHI LTD11 citations73
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
US6333977B1Dec 25, 2001
Communication method authenticating a personal station and calculating a fee of a telephone call from the personal station
HITACHI LTD2 citations62