Inventor · disambiguated record
Akira Koyama
Also filed as: KOYAMA AKIRA
31 granted patents·17 pending applications·401 citations·filing 1974–2022
96Inventor score
Files withALPS ELECTRIC CO LTD5KOYAMA AKIRA5NAKAJIMA MASAYOSHI3NIPPON TELEGRAPH & TELEPHONE3TOYOTA MOTOR CO LTD3
Top patents by PatentIndex Score
48 records- 0191US5631100ASecondary batteryASAHI CHEMICAL IND·Filed 1992·Granted May 20, 1997·128 cites·17 claims
- 0286US6226361B1Communication method, voice transmission apparatus and voice reception apparatusNEC CORP·Filed 1998·Granted May 1, 2001·97 cites·10 claims
- 0385US9505986B2Fuel oil base and aviation fuel composition containing sameJX NIPPON OIL & ENERGY CORP·Filed 2014·Granted Nov 29, 2016·4 cites·4 claims
- 0485US8784645B2Process for producing hydrocarbon oilIGUCHI YASUTOSHI·Filed 2009·Granted Jul 22, 2014·21 cites·10 claims
- 0583US6697221B2Perpendicular magnetic recording head with inverted trapezoidal main magnetic pole layerALPS ELECTRIC CO LTD·Filed 2001·Granted Feb 24, 2004·51 cites·7 claims
- 0676US8414192B2Cage for ball bearingSEKIMOTO HIROSHI·Filed 2005·Granted Apr 9, 2013·7 cites·19 claims
- 0773US5584098AOperating knob-mounting structureTOYODA GOSEI KK·Filed 1995·Granted Dec 17, 1996·41 cites·8 claims
- 0872US9377361B2Human body detecting systemNABATA TOSHIHISA·Filed 2012·Granted Jun 28, 2016·4 cites·19 claims
- 0970US6919043B2Method of sterilization for container, apparatus using therefor and heat treatment for containerDAINIPPON PRINTING CO LTD·Filed 2002·Granted Jul 19, 2005·13 cites·6 claims
- 1068US6987758B1Network switching system with asynchronous and isochronous interfaceJUNIPER NETWORKS INC·Filed 2000·Granted Jan 17, 2006·7 cites·7 claims
- 1167US7480290B2Network switching system with asynchronous and isochronous interfaceJUNIPER NETWORKS INC·Filed 2005·Granted Jan 20, 2009·1 cites·14 claims
- 1264US2024391780A1Method for producing graphite particlesSEC CARBON LTD·Filed 2022·Application pending·0 cites
- 1363US11581580B2Electrolyte for lithium ion secondary battery, lithium ion secondary battery, and moduleTOYOTA MOTOR CO LTD·Filed 2020·Granted Feb 14, 2023·0 cites·5 claims
- 1462US7712967B2Ball bearingJTEKT CORP·Filed 2007·Granted May 11, 2010·2 cites·16 claims
- 1562US2025233150A1Graphite particlesSEC CARBON LTD·Filed 2022·Application pending·0 cites
- 1660US2008107562A1Method for sterilizing articles and sterilizing apparatusHAYASHI MAKOTO·Filed 2007·Application pending·0 cites
- 1758US2014115954A1Method for manufacturing an aviation fuel oil compositionJX NIPPON OIL & ENERGY CORP·Filed 2014·Application pending·0 cites
- 1857US8421405B2Charge system, mobile electronic device, cell terminal used for them, and secondary cellNAKAJIMA MASAYOSHI·Filed 2008·Granted Apr 16, 2013·3 cites·11 claims
- 1957US6636381B1Thin-film magnetic head for reducing track width, preventing write fringing and reducing magnetic saturation, and production method thereofALPS ELECTRIC CO LTD·Filed 2000·Granted Oct 21, 2003·5 cites·7 claims
- 2056US6704162B2Thin-film head for reducing track width, preventing write fringing and reducing saturationALPS ELECTRIC CO LTD·Filed 2002·Granted Mar 9, 2004·2 cites·10 claims
- 2155US6882502B2Thin-film magnetic head with narrowed track width and method for making sameALPS ELECTRIC CO LTD·Filed 2001·Granted Apr 19, 2005·2 cites·6 claims
- 2254US9786953B2Non-aqueous electrolyte secondary battery and assembly thereofTOYOTA MOTOR CO LTD·Filed 2015·Granted Oct 10, 2017·0 cites·18 claims
- 2354US8249061B2Network switching system with asynchronous and isochronous interfaceKOYAMA AKIRA·Filed 2008·Granted Aug 21, 2012·0 cites·23 claims
- 2454US2021241406A1Management device, management method, and management programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 2552US12505732B2Disaster information provision device, disaster information provision system, disaster information provision method, and disaster information provision programNTT INC·Filed 2021·Granted Dec 23, 2025·0 cites·9 claims
- 2652US8615007B2Network switching system with asynchronous and isochronous interfaceKOYAMA AKIRA·Filed 2012·Granted Dec 24, 2013·0 cites·20 claims
- 2752US6876541B1Aluminum material for electrode of electrolytic capacitor and method for producing aluminum foil for electrode of electrolytic capacitor, and electrolytic capacitorNICHICON CORP·Filed 2001·Granted Apr 5, 2005·7 cites·54 claims
- 2852US2022414611A1Data processing device, cooperative system, data processing method, and data processing programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 2951US7786637B2Touchdown bearingJTEKT CORP·Filed 2005·Granted Aug 31, 2010·1 cites·19 claims
- 3051US2018355274A1Gas engine lubricating oil composition, and method for improving fuel consumption and/or for reducing abnormal combustionJXTG NIPPON OIL & ENERGY CORP·Filed 2018·Application pending·0 cites
- 3150US2004208781A1Article sterilizing methods and sterilizing deviceFiled 2002·Application pending·0 cites
- 3249US3951176AHook connecting apparatus in a chain disc-type dobby machineYAMADA DOBBY CO LTD·Filed 1974·Granted Apr 20, 1976·5 cites·9 claims
- 3348US2005226796A1Method of sterilization for container, apparatus using therefor, and heat treatment for containerHAYAKAWA ATSUSHI·Filed 2005·Application pending·0 cites
- 3448US2021231394A1Metal membersTOYOTA MOTOR CO LTD·Filed 2021·Application pending·0 cites
- 3548US2012198757A1Aviation fuel oil compositionKOYAMA AKIRA·Filed 2010·Application pending·0 cites
- 3648US2021256444A1Information processing device, information processing method, and information processing programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 3747US2012209038A1Fuel oil base and aviation fuel composition containing sameIGUCHI YASUTOSHI·Filed 2010·Application pending·0 cites
- 3845US9464250B2Process for producing aviation fuel base oilKOYAMA AKIRA·Filed 2009·Granted Oct 11, 2016·0 cites·5 claims
- 3945US9447333B2Aviation fuel base oil and aviation fuel compositionKOYAMA AKIRA·Filed 2009·Granted Sep 20, 2016·0 cites·6 claims
- 4043US2021133655A1Transportation plan generation apparatus and transportation plan generation methodHITACHI TRANSPORT SYSTEM·Filed 2020·Application pending·0 cites
- 4141US9283552B2Method for producing aviation fuel oil base and aviation fuel oil compositionHAYASAKA KAZUAKI·Filed 2010·Granted Mar 15, 2016·0 cites·9 claims
- 4241US8774877B2Mobile electronic deviceSUDA KAZUYOSHI·Filed 2010·Granted Jul 8, 2014·0 cites·9 claims
- 4341US2010332880A1Mobile Electronic DeviceKYOCERA CORP·Filed 2009·Application pending·0 cites
- 4440US8392131B2Portable electronic device and method for controlling the sameNAKAJIMA MASAYOSHI·Filed 2008·Granted Mar 5, 2013·0 cites·14 claims
- 4536US7088549B1Thin-film magnetic head having a high recording density and frequencyALPS ELECTRIC CO LTD·Filed 2000·Granted Aug 8, 2006·0 cites·25 claims
- 4635US2013216928A1Electronic deviceNAKAJIMA MASAYOSHI·Filed 2011·Application pending·0 cites
- 4734US2010274508A1Mobile Electronic Device and Method for Controlling the SameKYOCERA CORP·Filed 2007·Application pending·0 cites
- 4829US9140762B2Mobile electronic device and method for controlling the sameHAYAKAWA TAKANOBU·Filed 2008·Granted Sep 22, 2015·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →