Inventor · disambiguated record
Yukihiko Okumura
Also filed as: OKUMURA YUKIHIKO
103 granted patents·13 pending applications·1,016 citations·filing 1994–2019
99Inventor score
Files withNTT DOCOMO INC89NIPPON TELEGRAPH & TELEPHONE10OHWATARI YUSUKE5BENJEBBOUR ANASS2MORIOKA YASUFUMI2
Top patents by PatentIndex Score
116 records- 0194US6034952AMethod and instrument for measuring receiving SIR and transmission power controllerNIPPON TELEGRAPH & TELEPHONE·Filed 1997·Granted Mar 7, 2000·187 cites·24 claims
- 0293US10116370B2Radio communication control method and radio communication systemNTT DOCOMO INC·Filed 2016·Granted Oct 30, 2018·11 cites·12 claims
- 0393US6956842B1Multiplexing method and multiplexing device, and data signal transmission method and data signal transmission deviceNTT DOCOMO INC·Filed 2000·Granted Oct 18, 2005·42 cites·24 claims
- 0490US10051484B2Synchronization signal transmitting method and base station apparatusNTT DOCOMO INC·Filed 2014·Granted Aug 14, 2018·10 cites·7 claims
- 0589US10505593B2Wireless communication system and management apparatusNTT DOCOMO INC·Filed 2017·Granted Dec 10, 2019·8 cites·4 claims
- 0689US9979448B2Radio communication control method and radio communication systemNTT DOCOMO INC·Filed 2016·Granted May 22, 2018·8 cites·7 claims
- 0789US9794902B2Synchronization method, mobile station apparatus and base station apparatusNTT DOCOMO INC·Filed 2014·Granted Oct 17, 2017·9 cites·10 claims
- 0889US6097711ADS-CDMA transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 1997·Granted Aug 1, 2000·78 cites·6 claims
- 0987US7327718B2Data multiplexing method and data multiplexer, and data transmitting method and data transmitterNTT DOCOMO INC·Filed 2007·Granted Feb 5, 2008·10 cites·40 claims
- 1087US7301991B2Fading frequency decision device and methodNTT DOCOMO INC·Filed 2005·Granted Nov 27, 2007·10 cites·30 claims
- 1186US6944468B2Transmit power control method and transmit power control system suitable to mobile communicationsNTT DOCOMO INC·Filed 2002·Granted Sep 13, 2005·41 cites·20 claims
- 1286US5896374AVariable rate transmission method, transmitter and receiver using the sameNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted Apr 20, 1999·111 cites·57 claims
- 1385US9647737B2Radio communication control method and radio communication systemNTT DOCOMO INC·Filed 2015·Granted May 9, 2017·6 cites·6 claims
- 1484US9667372B2Mobile communication terminalNTT DOCOMO INC·Filed 2013·Granted May 30, 2017·6 cites·22 claims
- 1584US6341224B1Power controller for mobile communication system wherein a signal to interference threshold is dynamically moved based on an error rate measurementNIPPON TELEGRAPH & TELEPHONE·Filed 1997·Granted Jan 22, 2002·129 cites·10 claims
- 1683US7277721B2Transmission power control apparatus and method in a mobile communication system, mobile station, and communication apparatusNTT DOCOMO INC·Filed 2002·Granted Oct 2, 2007·31 cites·53 claims
- 1782US7342915B2Data multiplexing method and data multiplexer, and data transmitting method and data transmitterNTT DOCOMO INC·Filed 2006·Granted Mar 11, 2008·6 cites·34 claims
- 1880US10917160B2Wireless base station, and wireless communication methodNTT DOCOMO INC·Filed 2018·Granted Feb 9, 2021·3 cites·11 claims
- 1978US10014968B2Base station and user equipmentNTT DOCOMO INC·Filed 2015·Granted Jul 3, 2018·3 cites·5 claims
- 2078US8743780B2Radio communication system, radio transmitting apparatus and radio receiving apparatusSANGIAMWONG JATURONG·Filed 2010·Granted Jun 3, 2014·6 cites·3 claims
- 2178US6842442B2DS-CDMA transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Jan 11, 2005·50 cites·6 claims
- 2277US7907947B2Cell search control method and mobile device using the methodNTT DOCOMO INC·Filed 2006·Granted Mar 15, 2011·7 cites·18 claims
- 2377US7149207B2Data multiplexing method and data multiplexer, and data transmitting method and data transmitterNTT DOCOMO INC·Filed 2005·Granted Dec 12, 2006·4 cites·8 claims
- 2477US7139261B2Data multiplexing method and data multiplexer, and data transmitting method and data transmitterNTT DOCOMO INC·Filed 2005·Granted Nov 21, 2006·4 cites·8 claims
- 2576US8787279B2Radio communication system, centralized station, control station apparatus, radio base station and coordinated transmission method for determining an assignment of cluster patternsBENJEBBOUR ANASS·Filed 2011·Granted Jul 22, 2014·4 cites·11 claims
- 2676US7139243B2Data transmission method, data transmission system, transmitter and receiverNTT DOCOMO INC·Filed 2001·Granted Nov 21, 2006·19 cites·5 claims
- 2775US8879468B2Radio communication apparatus and radio communication methodBENJEBBOUR ANASS·Filed 2011·Granted Nov 4, 2014·4 cites·8 claims
- 2875US7929592B1Channel estimation device and method, demodulation device and method, and fading frequency decision device and methodNTT DOCOMO INC·Filed 2000·Granted Apr 19, 2011·16 cites·55 claims
- 2974US7142529B2Data multiplexing method and data multiplexer, and data transmitting method and data transmitterNTT DOCOMO INC·Filed 2005·Granted Nov 28, 2006·3 cites·8 claims
- 3073US10142939B2Base station and user device for reducing amount of information for interference canceller in radio communication systemNTT DOCOMO INC·Filed 2015·Granted Nov 27, 2018·2 cites·10 claims
- 3172US7643845B2Transmission power control device and method, mobile station, and communication device in mobile communication systemNTT DOCOMO INC·Filed 2007·Granted Jan 5, 2010·4 cites·6 claims
- 3271US7020209B1Data transmission method, data transmission system, transmitter and receiverNTT DOCOMO INC·Filed 2000·Granted Mar 28, 2006·16 cites·41 claims
- 3370US8023906B2Diversity receiver and method for controlling diversity receiving operationNTT DOCOMO INC·Filed 2006·Granted Sep 20, 2011·3 cites·4 claims
- 3469US10111108B2Radio base station, mobile station and radio communication methodNTT DOCOMO INC·Filed 2014·Granted Oct 23, 2018·2 cites·17 claims
- 3568US9357504B2Radio communication system and radio base stationNTT DOCOMO INC·Filed 2013·Granted May 31, 2016·2 cites·11 claims
- 3668US9185710B2Radio communication system and radio base stationNTT DOCOMO INC·Filed 2013·Granted Nov 10, 2015·2 cites·6 claims
- 3767US11184844B2User terminal and cell selection methodNTT DOCOMO INC·Filed 2017·Granted Nov 23, 2021·1 cites·18 claims
- 3867US10383153B2Base stationNTT DOCOMO INC·Filed 2017·Granted Aug 13, 2019·1 cites·7 claims
- 3967US9066358B2Mobile communication terminalOHWATARI YUSUKE·Filed 2012·Granted Jun 23, 2015·2 cites·10 claims
- 4067US8730883B2Coordinated transmission method, coordinated transmission system, central station and radio base stationOHWATARI YUSUKE·Filed 2010·Granted May 20, 2014·2 cites·13 claims
- 4167US7853284B2Transmission power control method and apparatusNTT DOCOMO INC·Filed 2006·Granted Dec 14, 2010·4 cites·14 claims
- 4266US9173113B2Mobile communication terminalOHWATARI YUSUKE·Filed 2012·Granted Oct 27, 2015·2 cites·17 claims
- 4366US8731089B2Radio communication system, radio base station apparatus and communication control methodOHWATARI YUSUKE·Filed 2011·Granted May 20, 2014·2 cites·10 claims
- 4466US8050702B2Mobile station and transmission power control method in mobile stationNTT DOCOMO INC·Filed 2008·Granted Nov 1, 2011·3 cites·7 claims
- 4566US8037374B2Communication terminal device and reception environment reporting methodNTT DOCOMO INC·Filed 2009·Granted Oct 11, 2011·3 cites·4 claims
- 4665US11457418B2Wireless terminal, transmission power control method, and wireless base stationNTT DOCOMO INC·Filed 2018·Granted Sep 27, 2022·1 cites·4 claims
- 4765US10542485B2Base stationNTT DOCOMO INC·Filed 2017·Granted Jan 21, 2020·1 cites·8 claims
- 4865US10425255B2Estimation deviceNTT DOCOMO INC·Filed 2017·Granted Sep 24, 2019·1 cites·3 claims
- 4965US5815680ASIMD multiprocessor with an interconnection network to allow a datapath element to access local memoriesNIPPON TELEGRAPH & TELEPHONE·Filed 1994·Granted Sep 29, 1998·42 cites·10 claims
- 5063US9883464B2Radio communication system and user deviceNTT DOCOMO INC·Filed 2014·Granted Jan 30, 2018·1 cites·8 claims
Showing the top 50 of 116 patent records by PatentIndex Score.
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