Inventor · disambiguated record
Takashi Fukagawa
Also filed as: FUKAGAWA TAKASHI
43 granted patents·5 pending applications·1,055 citations·filing 1997–2023
98Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD19FUJITSU LTD7FUKAGAWA TAKASHI5PANASONIC CORP4KISIGAMI TAKAAKI2
Top patents by PatentIndex Score
48 records- 0199US6531991B2Dielectric resonator antenna for a mobile communicationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Mar 11, 2003·255 cites·3 claims
- 0295US6198450B1Dielectric resonator antenna for a mobile communicationFiled 2000·Granted Mar 6, 2001·107 cites·4 claims
- 0389US6188913B1Directivity control antenna apparatus for shaping the radiation pattern of antenna of base station in mobile communication system in accordance with estimated directions or positions of mobile stations with which communication is in progressMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 13, 2001·108 cites·25 claims
- 0488US8189649B2Wireless communication apparatusYUDA YASUAKI·Filed 2010·Granted May 29, 2012·8 cites·6 claims
- 0588US7263083B2Radio communication device and arrival direction estimation methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 28, 2007·34 cites·29 claims
- 0686US6897807B2Radio-wave arrival-direction estimating apparatus and directional variable transceiverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 24, 2005·49 cites·9 claims
- 0785US7593317B2Radio base station apparatusPANASONIC CORP·Filed 2003·Granted Sep 22, 2009·30 cites·24 claims
- 0885US6351238B1Direction of arrival estimation apparatus and variable directional signal receiving and transmitting apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 26, 2002·64 cites·21 claims
- 0984US8665153B2Array signal processing deviceNAKAGAWA YOICHI·Filed 2010·Granted Mar 4, 2014·11 cites·14 claims
- 1082US7088956B2Path search circuit, radio receiver and radio transmitter, utilizing a directional beamMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 8, 2006·23 cites·38 claims
- 1182US6642888B2Radio-wave arrival-direction estimating apparatus and directional variable transceiverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 4, 2003·41 cites·50 claims
- 1278US7117016B2Adaptive antenna base station apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 3, 2006·20 cites·17 claims
- 1373US7333056B2Adaptive antenna radio communication deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 19, 2008·11 cites·10 claims
- 1471US7860064B2Radio communication device and arrival direction estimation methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Dec 28, 2010·3 cites·11 claims
- 1570US6502132B1Network monitoring system, monitoring device, and monitored deviceFUJITSU LTD·Filed 1999·Granted Dec 31, 2002·69 cites·17 claims
- 1670US6349218B1Adaptive array antenna system and mobile telecommunications system using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 19, 2002·52 cites·8 claims
- 1768US6407718B2Dielectric resonator antenna for a mobile communicationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 18, 2002·14 cites·12 claims
- 1867US6529745B1Radio wave arrival direction estimating antenna apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 4, 2003·53 cites·22 claims
- 1966US8195201B2Radio positioning system and coordinate configuring methodMUKAI HIROHITO·Filed 2009·Granted Jun 5, 2012·3 cites·16 claims
- 2065US6333713B1Direction estimating apparatus, directivity controlling antenna apparatus, and direction estimating methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 25, 2001·21 cites·17 claims
- 2164US6836245B2Radio-wave arrival-direction estimating apparatus and directional variable transceiverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 28, 2004·14 cites·50 claims
- 2263US8659477B2Base station device and distance measuring methodFUKAGAWA TAKASHI·Filed 2009·Granted Feb 25, 2014·5 cites·9 claims
- 2361US7868815B2Wireless distance measurement system and wireless distance measurement methodPANASONIC CORP·Filed 2009·Granted Jan 11, 2011·4 cites·4 claims
- 2460US8948236B2Radio terminal device, radio base station device, radio ranging system, and radio ranging methodMUKAI HIROHITO·Filed 2010·Granted Feb 3, 2015·2 cites·11 claims
- 2560US8165248B2Wireless distance measurement system and wireless terminalFUKAGAWA TAKASHI·Filed 2009·Granted Apr 24, 2012·4 cites·10 claims
- 2660US7940215B2Adaptive antenna radio communication devicePANASONIC CORP·Filed 2007·Granted May 10, 2011·1 cites·6 claims
- 2760US7031719B2Method of calculating exciting coefficients for circular array antenna and radio unit utilizing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 18, 2006·12 cites·23 claims
- 2859US7184734B2Radio communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 27, 2007·5 cites·24 claims
- 2958US7885181B2Ring node apparatusFUJITSU LTD·Filed 2007·Granted Feb 8, 2011·2 cites·12 claims
- 3057US8400357B2Radio arrival direction estimation device and radio arrival direction estimation methodFUKAGAWA TAKASHI·Filed 2009·Granted Mar 19, 2013·3 cites·9 claims
- 3157US6922450B2Direction of arrival estimator and direction of arrival estimation methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 26, 2005·13 cites·18 claims
- 3256US6671469B1Supervisory apparatus for transmission linesFUJITSU LTD·Filed 2000·Granted Dec 30, 2003·8 cites·8 claims
- 3352US8498327B2Wireless communication apparatusYUDA YASUAKI·Filed 2012·Granted Jul 30, 2013·0 cites·6 claims
- 3450US8599071B2Adaptive antenna radio communication deviceKISHIGAMI TAKAAKI·Filed 2011·Granted Dec 3, 2013·0 cites·19 claims
- 3549US7529248B2Network device provided with ethernet interfaceFUJITSU LTD·Filed 2004·Granted May 5, 2009·2 cites·5 claims
- 3648US7676005B2Wireless communication apparatusPANASONIC CORP·Filed 2005·Granted Mar 9, 2010·0 cites·8 claims
- 3746US6781543B2Adaptive array antenna system and mobile telecommunications system using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 24, 2004·4 cites·17 claims
- 3845US8605598B2Frame loss measurement method, system, and apparatusFUKAGAWA TAKASHI·Filed 2010·Granted Dec 10, 2013·0 cites·18 claims
- 3945US8208981B2MIMO communication deviceFUKAGAWA TAKASHI·Filed 2008·Granted Jun 26, 2012·0 cites·12 claims
- 4044US8532064B2Radio communication device and arrival direction estimation methodKISIGAMI TAKAAKI·Filed 2010·Granted Sep 10, 2013·0 cites·5 claims
- 4144US8520641B2Radio communication device and arrival direction estimation methodKISIGAMI TAKAAKI·Filed 2010·Granted Aug 27, 2013·0 cites·11 claims
- 4243US2024080263A1Packet processing apparatus and communication systemFUJITSU LTD·Filed 2023·Application pending·0 cites
- 4342US7515527B2SDH transmission apparatus and signal transmission methodFUJITSU LTD·Filed 2005·Granted Apr 7, 2009·0 cites·13 claims
- 4442US2008269012A1Hydraulic pressure control device for continuously variable transmissionJATCO LTD·Filed 2007·Application pending·0 cites
- 4539US2007217438A1Ring node device and method of connecting terminal to ring node deviceFUJITSU LTD·Filed 2006·Application pending·0 cites
- 4637US2005162424A1Computer product, session management method, and session management apparatusFiled 2005·Application pending·0 cites
- 4736US9124499B2Frame transmission systemFUJITSU TELECOM NETWORKS LTD·Filed 2013·Granted Sep 1, 2015·0 cites·8 claims
- 4834US2012014412A1Positioning system and positioning methodNAKAGAWA YOICHI·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →