Inventor · disambiguated record
Yoshio Koyanagi
Also filed as: KOYANAGI YOSHIO
76 granted patents·45 pending applications·932 citations·filing 1997–2025
99Inventor score
Files withPANASONIC CORP32MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31PANASONIC IP MAN CO LTD17SOVEREIGN PEAK VENTURES LLC5SATOU HIROSHI4
Top patents by PatentIndex Score
121 records- 0196US7453405B2Portable wireless devicePANASONIC CORP·Filed 2005·Granted Nov 18, 2008·86 cites·7 claims
- 0294US9607757B2Non-contact wireless communication coil, transmission coil, and portable wireless terminalPANASONIC CORP·Filed 2012·Granted Mar 28, 2017·27 cites·29 claims
- 0393US9735606B2Mobile terminal including charging coil and wireless communication coil, wireless charging module including charging coil and wireless communication coilPANASONIC IP MAN CO LTD·Filed 2013·Granted Aug 15, 2017·15 cites·2 claims
- 0493US9634515B2Non-contact wireless communication coil, transmission coil, and portable wireless terminalPANASONIC CORP·Filed 2016·Granted Apr 25, 2017·10 cites·15 claims
- 0593US7502592B2Adaptive antenna apparatus provided with controller for controlling to select best demodulated signalPANASONIC CORP·Filed 2005·Granted Mar 10, 2009·25 cites·17 claims
- 0693US6806836B2Helical antenna apparatus provided with two helical antenna elements, and radio communication apparatus provided with same helical antenna apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 19, 2004·86 cites·39 claims
- 0791US10230272B2Mobile terminal including wireless charging coil and magnetic sheet having inwardly receding portionPANASONIC IP MAN CO LTD·Filed 2018·Granted Mar 12, 2019·5 cites·12 claims
- 0891US9667086B2Mobile terminalPANASONIC IP MAN CO LTD·Filed 2013·Granted May 30, 2017·13 cites·9 claims
- 0990US10574090B2Mobile terminal including wireless charging coil and magnetic sheet having inwardly receding portionSOVEREIGN PEAK VENTURES LLC·Filed 2019·Granted Feb 25, 2020·4 cites·12 claims
- 1090US6731920B1Portable telephone apparatus and control method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 4, 2004·42 cites·22 claims
- 1188US10291069B2Mobile terminal and chargeable communication moduleSOVEREIGN PEAK VENTURES LLC·Filed 2017·Granted May 14, 2019·4 cites·16 claims
- 1288US10276916B2Antenna devicePANASONIC IP MAN CO LTD·Filed 2017·Granted Apr 30, 2019·6 cites·4 claims
- 1388US6211830B1Radio antenna deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 3, 2001·100 cites·20 claims
- 1487US10886621B2Antenna devicePANASONIC IP MAN CO LTD·Filed 2019·Granted Jan 5, 2021·6 cites·7 claims
- 1587US6919845B2Apparatus for measuring specific absorption rate based on near magnetic field for use in radio apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 19, 2005·39 cites·18 claims
- 1686US10204734B2Electronic device including non-contact charging module and near field communication antennaPANASONIC CORP·Filed 2018·Granted Feb 12, 2019·4 cites·15 claims
- 1786US6697025B2Antenna apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 24, 2004·55 cites·20 claims
- 1885US10447053B2TerminalPANASONIC IP MAN CO LTD·Filed 2017·Granted Oct 15, 2019·5 cites·6 claims
- 1983US9941048B2Non-contact wireless communication coil, transmission coil, and portable wireless terminalPANASONIC CORP·Filed 2016·Granted Apr 10, 2018·3 cites·26 claims
- 2082US7589687B2Antenna apparatus provided with antenna element excited through multiple feeding pointsPANASONIC CORP·Filed 2007·Granted Sep 15, 2009·13 cites·8 claims
- 2182US7532168B2Folding portable wireless unitPANASONIC CORP·Filed 2005·Granted May 12, 2009·16 cites·7 claims
- 2280US7777688B2Polarization switching antenna devicePANASONIC CORP·Filed 2005·Granted Aug 17, 2010·13 cites·9 claims
- 2379US11075547B2Cell phone having wireless charging functionSOVEREIGN PEAK VENTURES LLC·Filed 2017·Granted Jul 27, 2021·2 cites·9 claims
- 2479US7324047B2Adaptive antenna apparatus for selecting adaptive control processing according to detected signal quality and radio communication apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jan 29, 2008·7 cites·21 claims
- 2579US7268564B2Apparatus for measuring specific absorption rate of radio communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 11, 2007·24 cites·12 claims
- 2678US2023208196A1Mobile terminal and chargeable communication moduleSOVEREIGN PEAK VENTURES LLC·Filed 2023·Application pending·0 cites
- 2776US7821463B2Mobile telephone with broadcast receiving elementPANASONIC CORP·Filed 2005·Granted Oct 26, 2010·10 cites·7 claims
- 2876US7671818B2Antenna device with integrated connection cable, and radio apparatusPANASONIC CORP·Filed 2005·Granted Mar 2, 2010·10 cites·30 claims
- 2975US9001000B2AntennaSATOU HIROSHI·Filed 2012·Granted Apr 7, 2015·5 cites·6 claims
- 3075US8200302B2Mobile wireless communication apparatus having a plurality of antenna elementsYAMAMOTO ATSUSHI·Filed 2008·Granted Jun 12, 2012·9 cites·17 claims
- 3173US10549652B2Power transmission devicePANASONIC IP MAN CO LTD·Filed 2016·Granted Feb 4, 2020·3 cites·10 claims
- 3273US7843394B2Radio antenna unit and mobile radio device equipped with the samePANASONIC CORP·Filed 2005·Granted Nov 30, 2010·8 cites·12 claims
- 3373US7439918B2Adaptive antenna apparatus including adaptive controller for adaptive controlling at least two antenna elementsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 21, 2008·5 cites·17 claims
- 3473US5940040ASystem for selecting between a whip antenna and a built-in antennaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Aug 17, 1999·45 cites·2 claims
- 3572US2025343444A1Wireless power transmission method and wireless power transmission devicePANASONIC HOLDINGS CORP·Filed 2025·Application pending·0 cites
- 3671US9105975B2Antenna device and portable wireless terminal equipped with the sameSATOU HIROSHI·Filed 2011·Granted Aug 11, 2015·4 cites·5 claims
- 3771US7212164B2Radio terminal device antenna and radio terminal deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 1, 2007·21 cites·22 claims
- 3869US11616395B2Mobile terminal and chargeable communication moduleSOVEREIGN PEAK VENTURES LLC·Filed 2020·Granted Mar 28, 2023·0 cites·20 claims
- 3969US9325197B2Coil module and electronic apparatusPANASONIC IP CORP AMERICA·Filed 2014·Granted Apr 26, 2016·2 cites·13 claims
- 4069US7062245B2Radio transmission apparatus and radio reception apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 13, 2006·11 cites·2 claims
- 4168US8200301B2Mobile wireless communication apparatus having a plurality of antenna elementsYAMAMOTO ATSUSHI·Filed 2008·Granted Jun 12, 2012·6 cites·24 claims
- 4267US10862341B2Electric power transmission devicePANASONIC CORP·Filed 2017·Granted Dec 8, 2020·1 cites·14 claims
- 4367US10790705B2Power transmission devicePANASONIC CORP·Filed 2017·Granted Sep 29, 2020·1 cites·5 claims
- 4467US7616161B2Portable wireless apparatusPANASONIC CORP·Filed 2006·Granted Nov 10, 2009·3 cites·6 claims
- 4566US8190104B2MIMO antenna apparatus changing antenna elements based on transmission capacityYAMAMOTO ATSUSHI·Filed 2009·Granted May 29, 2012·3 cites·19 claims
- 4666US6459412B1Antenna unitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 1, 2002·20 cites·5 claims
- 4765US11502550B2Power transmitting device that transmits power to power receiving device having power receiving coil in waterPANASONIC CORP·Filed 2021·Granted Nov 15, 2022·0 cites·7 claims
- 4864US9444150B2Antenna device and portable wireless terminal equipped with sameHIROBE TAKANORI·Filed 2012·Granted Sep 13, 2016·3 cites·9 claims
- 4964US2021281328A1Underwater communication device and underwater communication systemPANASONIC IP MAN CO LTD·Filed 2021·Application pending·0 cites
- 5063US6590538B1Antenna apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 8, 2003·18 cites·8 claims
Showing the top 50 of 121 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →