Inventor
TAMURA YOSHIHARU
JP19 patents
⚠️ This page may combine multiple inventors who share the name “TAMURA YOSHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
13 patentsUS5335368AAug 2, 1994
Portable radio apparatus having variable impedance matching circuit between antenna and radio circuit
NEC CORP104 citations96
US5043651AAug 27, 1991
Apparatus for displaying the remaining charge of rechargeable battery
NEC CORP78 citations96
US4914714AApr 3, 1990
Portable radio communication apparatus having diversity reception function
NEC CORP71 citations96
US4850006AJul 18, 1989
Booster and charger unit used for hand-held portable telephone and having overheat protection circuit
NEC CORP83 citations96
US5255001AOct 19, 1993
Antenna system for portable radio apparatus
NEC CORP50 citations92
US5193219AMar 9, 1993
Vehicular power booster circuitry for multi-level portable transceiver
NEC CORP33 citations92
US4866396ASep 12, 1989
Temperature stabilized RF detector
NEC CORP53 citations92
US4709404ANov 24, 1987
Battery-powered radio communication apparatus capable of prolonging the communicable state thereof
NEC CORP51 citations92
US4510460AApr 9, 1985
Output power control circuit for power amplifier
NEC CORP37 citations92
US5404390AApr 4, 1995
Portable telephone set
NEC CORP15 citations74
US4820995AApr 11, 1989
Temperature stabilized RF detector
NEC CORP9 citations74
US4810101AMar 7, 1989
Noise detection by sampling digital baseband signal at eye openings
NEC CORP17 citations74
US4907122AMar 6, 1990
Relay circuit having a pulse generator for closing contacts
NEC CORP3 citations63