Inventor
OKAMOTO TEIJI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO TEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS5371602ADec 6, 1994
Picture data recording/reproducing system for recording compressed picture data and reproducing recorded data with plural reproduction modes
HITACHI LTD143 citations96
US4985784AJan 15, 1991
Image data transfer method and apparatus therefor
HITACHI LTD67 citations96
US6275690B1Aug 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
US5657379AAug 12, 1997
Data communication apparatus and method for performing noiseless data communication using a spread spectrum system
HITACHI LTD33 citations92
US5359644AOct 25, 1994
Voice/image simultaneous communication apparatus
HITACHI LTD24 citations92
US5377257ADec 27, 1994
Facsimile receiving method and facsimile apparatus carrying out the method
HITACHI LTD31 citations89
US4773026ASep 20, 1988
Picture display memory system
HITACHI LTD33 citations89
US6823182B1Nov 23, 2004
Cellular mobile telephone apparatus
HITACHI LTD11 citations73
US5361047ANov 1, 1994
PI/4 shift QPSK modulator and communication apparatus used therewith
HITACHI LTD13 citations73
US5805678ASep 8, 1998
Cordless subunit facsimile system
HITACHI LTD14 citations72
US4346472AAug 24, 1982
Method and apparatus for eliminating double bit errosion in a differential phase shift keying system
HITACHI LTD11 citations72
US5210775AMay 11, 1993
π/4 shift QPSK modulator and communication apparatus
HITACHI LTD13 citations70