Inventor · disambiguated record
Osamu Ichiyoshi
Also filed as: ICHIYOSHI OSAMU
27 granted patents·4 pending applications·832 citations·filing 1980–2003
97Inventor score
Top patents by PatentIndex Score
31 records- 0196US5699383AHigh-power linear amplification using periodically updated amplitude and phase correction valuesNEC CORP·Filed 1996·Granted Dec 16, 1997·152 cites·9 claims
- 0291US4905221AEarth station capable of effectively using a frequency band of a satelliteNEC CORP·Filed 1988·Granted Feb 27, 1990·112 cites·7 claims
- 0386US4785447AFDM demultiplexer using oversampled digital filtersNEC CORP·Filed 1988·Granted Nov 15, 1988·36 cites·6 claims
- 0481US5281974AAntenna device capable of reducing a phase noiseNEC CORP·Filed 1992·Granted Jan 25, 1994·68 cites·5 claims
- 0579US4879713ASatellite-based vehicle communication/position determination systemNEC CORP·Filed 1988·Granted Nov 7, 1989·44 cites·1 claims
- 0678US6014366AVariable-bandwidth frequency division multiplex communication systemNEC CORP·Filed 1997·Granted Jan 11, 2000·53 cites·14 claims
- 0777US4901310AMobile satellite communication systemNEC CORP·Filed 1988·Granted Feb 13, 1990·44 cites·7 claims
- 0875US5351014AVoltage control oscillator which suppresses phase noise caused by internal noise of the oscillatorNEC CORP·Filed 1993·Granted Sep 27, 1994·39 cites·3 claims
- 0972US5867792ARadio communication systemNEC CORP·Filed 1997·Granted Feb 2, 1999·46 cites·9 claims
- 1070US4914735APropagation time detecting system with use of detected phase difference of transmitted and received subcarrierNEC CORP·Filed 1988·Granted Apr 3, 1990·29 cites·20 claims
- 1168US7283491B2Communication system and method capable of broadcasting by using terrestrial and satellite communication networksNEC CORP·Filed 2002·Granted Oct 16, 2007·12 cites·6 claims
- 1267US7155160B2Satellite communications data distribution system capable of providing a lot of data in response to a user's requestNEC CORP·Filed 2001·Granted Dec 26, 2006·6 cites·18 claims
- 1361US7002945B2FDM-CDMA transmitting method, FDM-CDMA receiving method, FDM-CDMA transmitting device and FDM-CDMA receiving deviceNEC CORP·Filed 2001·Granted Feb 21, 2006·6 cites·12 claims
- 1456US5526348AArea radio communication with radio channels divided into channel groupsNEC CORP·Filed 1994·Granted Jun 11, 1996·43 cites·25 claims
- 1554US4833696ASystem for controlling operation mode of modulator/demodulatorNEC CORP·Filed 1986·Granted May 23, 1989·18 cites·2 claims
- 1650US2001049088A1Education system using satellite communicationsNEC CORP·Filed 2001·Application pending·0 cites
- 1749US5268647AMethod and arrangement of coherently demodulating PSK signals using a feedback loop including a filter bankNEC CORP·Filed 1992·Granted Dec 7, 1993·20 cites·4 claims
- 1848US5991280AMethod and system for controlling TDMA timing in satellite communication networkNEC CORP·Filed 1996·Granted Nov 23, 1999·16 cites·11 claims
- 1948US4654864APhase synchronizing circuitNEC CORP·Filed 1983·Granted Mar 31, 1987·11 cites·6 claims
- 2047US6009313ARadio Communication device capable of setting a frequency channel with a small frequency stepNEC CORP·Filed 1997·Granted Dec 28, 1999·15 cites·12 claims
- 2147US5357447ARate conversion apparatusNEC CORP·Filed 1991·Granted Oct 18, 1994·13 cites·14 claims
- 2246US4339725ASynchronous demodulator for multi-phase PSK signalNIPPON ELECTRIC CO·Filed 1980·Granted Jul 13, 1982·11 cites·5 claims
- 2346US2004107441A1Satellite value added communication system and satellite value added communication control apparatusNEC TOSHIBA SPACE SYS LTD·Filed 2003·Application pending·0 cites
- 2445US4759013AFDM-TDM transmultiplexing systemNEC CORP·Filed 1986·Granted Jul 19, 1988·12 cites·3 claims
- 2542US2001042134A1Computer communication networkFiled 2001·Application pending·0 cites
- 2640US5119037AHigh speed phase-lock loop deviceNEC CORP·Filed 1991·Granted Jun 2, 1992·6 cites·6 claims
- 2740US2001042096A1Satellite communication conference system and conference method capable of real-time conferenceFiled 2001·Application pending·0 cites
- 2835US5311555APhase divider for complex signalsNEC CORP·Filed 1992·Granted May 10, 1994·7 cites·4 claims
- 2935US5291144APhase-locked circuit capable of being quickly put in a phase-locked stateNEC CORP·Filed 1992·Granted Mar 1, 1994·5 cites·3 claims
- 3033US5173663ADemodulation circuit enabling independent recovery of the carrier and sampling timingNEC CORP·Filed 1991·Granted Dec 22, 1992·6 cites·3 claims
- 3130US5270665ADemodulator for continuously and accurately carrying out demodulating operation by a frequency multiplication methodNEC CORP·Filed 1992·Granted Dec 14, 1993·2 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Osamu Ichiyoshi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →