Inventor · disambiguated record
Shigeyuki Sudo
Also filed as: SUDO SHIGEYUKI
19 granted patents·3 pending applications·468 citations·filing 1991–2009
95Inventor score
Top patents by PatentIndex Score
22 records- 0189US5493710ACommunication system having oscillation frequency calibrating functionHITACHI LTD·Filed 1992·Granted Feb 20, 1996·99 cites·17 claims
- 0289US5450613AMobile communications equipment which detects and notifies when it is moved into or out of a service areaHITACHI LTD·Filed 1993·Granted Sep 12, 1995·195 cites·19 claims
- 0383US7471715B2Receiver for receiving a spectrum dispersion signalHITACHI LTD·Filed 2007·Granted Dec 30, 2008·6 cites·2 claims
- 0481US7035309B2Receiver for receiving a spectrum dispersion signalHITACHI LTD·Filed 2001·Granted Apr 25, 2006·15 cites·18 claims
- 0578US7400667B2Receiver for receiving a spectrum dispersion signalHITACHI LTD·Filed 2007·Granted Jul 15, 2008·4 cites·5 claims
- 0677US7953406B2Access pointHITACHI LTD·Filed 2006·Granted May 31, 2011·12 cites·16 claims
- 0769US7865195B2Mobile communication terminal and position monitoring methodCASIO HITACHI MOBILE COMM CO·Filed 2006·Granted Jan 4, 2011·5 cites·12 claims
- 0869US7447256B2Receiver for receiving a spectrum dispersion signalHITACHI LTD·Filed 2007·Granted Nov 4, 2008·2 cites·5 claims
- 0968US7269203B2Receiver for receiving a spectrum dispersion signalHITACHI LTD·Filed 2005·Granted Sep 11, 2007·2 cites·3 claims
- 1068US6625202B1Mobile station for spread spectrum communicationHITACHI LTD·Filed 1999·Granted Sep 23, 2003·40 cites·4 claims
- 1167US8130816B2Receiver for receiving a spectrum dispersion signalSUDO SHIGEYUKI·Filed 2008·Granted Mar 6, 2012·2 cites·2 claims
- 1267US7397777B1Handoff control method and a mobile station employing the sameHITACHI LTD·Filed 2000·Granted Jul 8, 2008·10 cites·17 claims
- 1367US6363101B1Receiver for receiving a spectrum dispersion signalHITACHI LTD·Filed 1999·Granted Mar 26, 2002·22 cites·5 claims
- 1458US5778314ASpeech message recording and reproducing method and apparatusHITACHI LTD·Filed 1995·Granted Jul 7, 1998·22 cites·15 claims
- 1552US8477722B2Handoff control method and a mobile station employing the sameSUDO SHIGEYUKI·Filed 2009·Granted Jul 2, 2013·0 cites·9 claims
- 1648US7606198B2Handoff control method and a mobile station employing the sameHITACHI LTD·Filed 2005·Granted Oct 20, 2009·0 cites·5 claims
- 1741US5361047API/4 shift QPSK modulator and communication apparatus used therewithHITACHI LTD·Filed 1993·Granted Nov 1, 1994·13 cites·15 claims
- 1841US2008317293A1Finger vein authentication apparatus and information processing apparatusSAKURAI SOICHI·Filed 2008·Application pending·0 cites
- 1938US5210775Aπ/4 shift QPSK modulator and communication apparatusHITACHI LTD·Filed 1991·Granted May 11, 1993·13 cites·15 claims
- 2038US2002111139A1Data distribution system and mobile data communication deviceFiled 2001·Application pending·0 cites
- 2137US2005036468A1Communication terminal and communication systemHITACHI LTD·Filed 2004·Application pending·0 cites
- 2233US5696792ADigital radiocommunication terminalHITACHI LTD·Filed 1994·Granted Dec 9, 1997·6 cites·11 claims
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