Inventor
TORISAWA AKIRA
JP42 patents
⚠️ This page may combine multiple inventors who share the name “TORISAWA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
23 patentsUS6459721B1Oct 1, 2002
Spread spectrum receiving apparatus
CANON KK94 citations97
US4794292ADec 27, 1988
Stepping motor with divided stator pole pieces
CANON KK48 citations93
US6020672AFeb 1, 2000
Surface acoustic wave converter with improved frequency characteristics, surface acoustic wave device using such converter, and communication system using such device
CANON KK22 citations92
US5856997AJan 5, 1999
Spread spectrum receiving apparatus
CANON KK30 citations92
US5815055ASep 29, 1998
Matched filter with improved synchronous characteristics, and reception device and communication system using the same
CANON KK43 citations92
US5596426AJan 21, 1997
Image processing method and apparatus
CANON KK20 citations92
US5539687AJul 23, 1996
Correlator and communication system using it
CANON KK25 citations92
US5477098ADec 19, 1995
Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same
CANON KK35 citations92
US5075609ADec 24, 1991
Recording apparatus
CANON KK25 citations92
US4972109ANov 20, 1990
Stepping motor
CANON KK39 citations92
US4963808AOct 16, 1990
Motor control apparatus
CANON KK44 citations90
US5760525AJun 2, 1998
Surface acoustic wave device and communication system using it
CANON KK19 citations84
US5097189AMar 17, 1992
Recording apparatus
CANON KK21 citations82
US5029264AJul 2, 1991
Recording apparatus
CANON KK21 citations82
US4952859AAug 28, 1990
Stepping motor
CANON KK22 citations82
US4928050AMay 22, 1990
Recorder
CANON KK22 citations82
US5962950AOct 5, 1999
Compact surface acoustic wave apparatus, spread spectrum signal receiver using the same apparatus for reception of spread spectrum signal, and spread spectrum signal communication system using the same spread spectrum signal receiver
CANON KK10 citations74
US5717274AFeb 10, 1998
Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same
CANON KK13 citations74
US5638191AJun 10, 1997
Image forming apparatus
CANON KK5 citations74
US5629781AMay 13, 1997
High-speed image processing using parallel storage
CANON KK8 citations73
US5457487AOct 10, 1995
Color image forming apparatus which times release of each of plural color image signals
CANON KK11 citations73
US6122068ASep 19, 2000
Image forming apparatus
CANON KK4 citations63
US5754303AMay 19, 1998
Image forming apparatus with a digital modulator
CANON KK5 citations62
SEIKO INSTR & ELECTRONICS
19 patentsUS4326278AApr 20, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS41 citations91
US4382691AMay 10, 1983
Electronic watch
SEIKO INSTR & ELECTRONICS22 citations82
US4321521AMar 23, 1982
Detection device of electronic timepiece
SEIKO INSTR & ELECTRONICS21 citations82
US4321520AMar 23, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS18 citations82
US4312059AJan 19, 1982
Electronic timepiece
SEIKO INSTR & ELECTRONICS23 citations82
US4312058AJan 19, 1982
Electronic watch
SEIKO INSTR & ELECTRONICS8 citations74
US4276626AJun 30, 1981
Electronic watch
SEIKO INSTR & ELECTRONICS8 citations74
US4272837AJun 9, 1981
Electronic timepiece with rotation detector
SEIKO INSTR & ELECTRONICS16 citations74
US4271496AJun 2, 1981
Electronic watch
SEIKO INSTR & ELECTRONICS7 citations74
US4217751AAug 19, 1980
Electronic timepiece
SEIKO INSTR & ELECTRONICS8 citations74
US4209971AJul 1, 1980
Electronic timepiece
SEIKO INSTR & ELECTRONICS8 citations74
US4204397AMay 27, 1980
Electronic timepiece
SEIKO INSTR & ELECTRONICS12 citations74
US4352172ASep 28, 1982
Detection device of electronic timepiece
SEIKO INSTR & ELECTRONICS10 citations73
US4321519AMar 23, 1982
Magnetic field detection device for electronic timepiece
SEIKO INSTR & ELECTRONICS11 citations73
US4368990AJan 18, 1983
Electronic timepiece
SEIKO INSTR & ELECTRONICS5 citations63
US4315329AFeb 9, 1982
Load measuring device for the gear train of a timepiece
SEIKO INSTR & ELECTRONICS3 citations63
US4241434ADec 23, 1980
Stepping motor mechanism for an electronic watch
SEIKO INSTR & ELECTRONICS5 citations63
US4075540AFeb 21, 1978
Stepping motor for timepiece
SEIKO INSTR & ELECTRONICS3 citations63
US4445784AMay 1, 1984
Electronic timepiece
SEIKO INSTR & ELECTRONICS4 citations61