Inventor · disambiguated record
Yukitsuna Furuya
Also filed as: FURUYA YUKITSUNA
32 granted patents·1 pending application·1,494 citations·filing 1977–2010
98Inventor score
Files withNEC CORP26NIPPON ELECTRIC CO3FURUYA YUKITSUNA1ICHIHARA MASAKI1KOKUSAI DENSHIN DENWA CO LTD1
Top patents by PatentIndex Score
33 records- 0196US5577087AVariable modulation communication method and systemNEC CORP·Filed 1992·Granted Nov 19, 1996·321 cites·10 claims
- 0292US7099268B2Orthogonal frequency division multiplex modem circuitNEC CORP·Filed 2001·Granted Aug 29, 2006·69 cites·4 claims
- 0390US5745858ABase station transmitter/receiver capable of varying composite directivity of antennasNEC CORP·Filed 1994·Granted Apr 28, 1998·99 cites·9 claims
- 0488US4888767ARepeat request signal transmission method for multi-station packet communicationNEC CORP·Filed 1988·Granted Dec 19, 1989·110 cites·7 claims
- 0587US5420863AMobile communication system with cell-site switching for intra-cell handoffNEC CORP·Filed 1993·Granted May 30, 1995·172 cites·15 claims
- 0686US5809019ATransmisson diversity systemNEC CORP·Filed 1996·Granted Sep 15, 1998·85 cites·12 claims
- 0782US4578800ASynchronization circuit for a Viterbi decoderYASUDA YUTAKA·Filed 1983·Granted Mar 25, 1986·31 cites·7 claims
- 0876US5444721AMaximum likelihood sequence estimation apparatusNEC CORP·Filed 1992·Granted Aug 22, 1995·24 cites·4 claims
- 0974US4367555ADigital equalizer for a cross-polarization receiverNIPPON ELECTRIC CO·Filed 1980·Granted Jan 4, 1983·34 cites·5 claims
- 1073US4764920APacket transmission systemNEC CORP·Filed 1985·Granted Aug 16, 1988·41 cites·6 claims
- 1170US5319795ACellular mobile communications system using frequencies commonly shared by neighboring cells for handoff operationsNEC CORP·Filed 1992·Granted Jun 7, 1994·85 cites·6 claims
- 1269US4742568AReceiver for antenna switching diversity systemsNEC CORP·Filed 1986·Granted May 3, 1988·31 cites·11 claims
- 1368US4168398AInitial acquisition signal detection system for TDMA satellite communicationNIPPON ELECTRIC CO·Filed 1977·Granted Sep 18, 1979·19 cites·7 claims
- 1467US8391914B2Transmitting apparatus, communication apparatus, receiving apparatus, communication system, broadcast receiving system, control program, communication method and broadcast receiving methodFURUYA YUKITSUNA·Filed 2007·Granted Mar 5, 2013·3 cites·14 claims
- 1566US5157661AHandoff method for cellular digital mobile communication system and mobile stationNEC CORP·Filed 1988·Granted Oct 20, 1992·60 cites·4 claims
- 1666US4527279ASynchronization circuit for a Viterbi decoderKOKUSAI DENSHIN DENWA CO LTD·Filed 1983·Granted Jul 2, 1985·17 cites·5 claims
- 1765US4747101AMethod of determining optimal transmission channel in multi-station communications systemNEC CORP·Filed 1986·Granted May 24, 1988·71 cites·6 claims
- 1863US8335153B2Orthogonal frequency division multiplex modem circuitICHIHARA MASAKI·Filed 2010·Granted Dec 18, 2012·1 cites·10 claims
- 1962US5625639ASpread spectrum method for transmitting an information signal as a radio signal at a high speedNEC CORP·Filed 1994·Granted Apr 29, 1997·23 cites·6 claims
- 2059US5303226AReception of TDMA digital data signal with compensation for channel variationsNEC CORP·Filed 1992·Granted Apr 12, 1994·35 cites·2 claims
- 2158US5363411ALow power consumption receiver with adaptive equalizerNEC CORP·Filed 1992·Granted Nov 8, 1994·32 cites·7 claims
- 2257US4327440ASignal detector for use in digital communicationNIPPON ELECTRIC CO·Filed 1980·Granted Apr 27, 1982·18 cites·48 claims
- 2354US6363100B1Radio data communication system using spread spectrum schemeNEC CORP·Filed 1994·Granted Mar 26, 2002·26 cites·15 claims
- 2453US5748668ASpread spectrum method for transmitting an information signal as a radio signal at a high speedNEC CORP·Filed 1997·Granted May 5, 1998·17 cites·10 claims
- 2551US7843803B2Orthogonal frequency division multiplex modem circuitNEC CORP·Filed 2006·Granted Nov 30, 2010·0 cites·42 claims
- 2651US5272726ABlind type sequence estimator for use in communications systemNEC CORP·Filed 1991·Granted Dec 21, 1993·22 cites·9 claims
- 2749US7395486B2Image communication system using a hierarchical code comprised of a plurality of layersNEC CORP·Filed 2004·Granted Jul 1, 2008·0 cites·20 claims
- 2846US5590404ABase station transmission-reception apparatus for cellular systemNEC CORP·Filed 1994·Granted Dec 31, 1996·15 cites·4 claims
- 2944US2008008229A1Cellular system, method of allocating frequency carriers in the system, base station controller and base station used in the systemNEC CORP·Filed 2007·Application pending·0 cites
- 3036US5101503AMethod of connecting channels of decentralized radio systemsNEC CORP·Filed 1990·Granted Mar 31, 1992·14 cites·4 claims
- 3135US5272447ADemodulator and demodulation method for a digital phase modulated signalNEC CORP·Filed 1992·Granted Dec 21, 1993·7 cites·6 claims
- 3232US5442803AHalf duplex communication system having quick channel assignmentsNEC CORP·Filed 1992·Granted Aug 15, 1995·7 cites·3 claims
- 3331USRE36309EHandoff method for cellular digital mobile communication system and mobile stationNEC CORP·Filed 1994·Granted Sep 21, 1999·5 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Yukitsuna Furuya 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 →