Inventor · disambiguated record
Hiroyuki Akiyama
Also filed as: AKIYAMA HIROYUKI
31 granted patents·8 pending applications·591 citations·filing 1979–2025
97Inventor score
Top patents by PatentIndex Score
39 records- 0194US5196254ACushioning materialJSP CORP·Filed 1989·Granted Mar 23, 1993·80 cites·4 claims
- 0289US4496627AElectrical conductive foam beads and molded electrical conductive foamed articles obtained therefromFUJIMORI KOGYO CO LTD·Filed 1982·Granted Jan 29, 1985·56 cites·20 claims
- 0389US4440703AProcess for producing foamed and molded article of polypropylene resinJAPAN STYRENE PAPER CORP·Filed 1982·Granted Apr 3, 1984·49 cites·2 claims
- 0488US11760338B2Vehicle control apparatusSUBARU CORP·Filed 2021·Granted Sep 19, 2023·2 cites·8 claims
- 0588US7577434B2Handover method in wireless LAN by assigning an identification code to a mobile stationOKI SEMICONDUCTOR CO LTD·Filed 2006·Granted Aug 18, 2009·19 cites·8 claims
- 0688US7336156B2Communication apparatus, communication method and installation method of railway vehicle-facility intra communication systemHITACHI LTD·Filed 2004·Granted Feb 26, 2008·48 cites·67 claims
- 0787US4443393AMethod of pressurizing treatment of pre-foamed particles of polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1982·Granted Apr 17, 1984·44 cites·2 claims
- 0885US4399087AProcess for producing foamed polyolefin articles from aged pre-foamed particles of polyolefin resinsJAPAN STYRENE PAPER CORP·Filed 1981·Granted Aug 16, 1983·57 cites·6 claims
- 0981US9822745B2Injector drive deviceFUJI HEAVY IND LTD·Filed 2015·Granted Nov 21, 2017·2 cites·1 claims
- 1081US4436840AProcess for producing pre-foamed particles of polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1982·Granted Mar 13, 1984·33 cites·2 claims
- 1179US4602082APropylene-base random copolymer particles and production process thereofJAPAN STYRENE PAPER CORP·Filed 1985·Granted Jul 22, 1986·30 cites·12 claims
- 1274US5214557AD.c. vacuum circuit breaker for an electric motor vehicleHITACHI LTD·Filed 1990·Granted May 25, 1993·33 cites·37 claims
- 1372US5646802ADisk drive with head suspensions mounted to actuator arm opposite sides to face respective upper and lower surfaces of diskIBM·Filed 1995·Granted Jul 8, 1997·20 cites·2 claims
- 1468US12454250B2Drive motor control system and snow removal system for vehicleSUBARU CORP·Filed 2024·Granted Oct 28, 2025·0 cites·7 claims
- 1567US12498233B2Information processing apparatusSUBARU CORP·Filed 2024·Granted Dec 16, 2025·0 cites·11 claims
- 1666US10871219B2Speed-switchable reduction gearKOBE STEEL LTD·Filed 2017·Granted Dec 22, 2020·1 cites·9 claims
- 1765US4451417AMethod of producing extruded plate-like polystyrene foamJAPAN STYRENE PAPER CORP·Filed 1982·Granted May 29, 1984·20 cites·3 claims
- 1859US11607953B2Vehicle control systemSUBARU CORP·Filed 2021·Granted Mar 21, 2023·0 cites·14 claims
- 1959US7356335B2Wireless communication apparatusOKI ELECTRIC IND CO LTD·Filed 2004·Granted Apr 8, 2008·6 cites·7 claims
- 2058US8175048B2Multi-hop wireless communication systemAKIYAMA HIROYUKI·Filed 2009·Granted May 8, 2012·2 cites·7 claims
- 2158US4692507APropylene-base random copolymer particles and production process thereofJAPAN STYRENE PAPER CORP·Filed 1986·Granted Sep 8, 1987·13 cites·5 claims
- 2257US4716021AHeat treatment apparatus for polyolefin resin particlesJAPAN STYRENE PAPER CORP·Filed 1986·Granted Dec 29, 1987·15 cites·6 claims
- 2355US4889671AProduction method of prefoamed particles of polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1988·Granted Dec 26, 1989·16 cites·6 claims
- 2455US4806293AMethod of producing a foamed, molded articleJAPAN STYRENE PAPER CORP·Filed 1987·Granted Feb 21, 1989·20 cites·5 claims
- 2549US2025272642A1Information processing apparatus and information processing methodNEC CORP·Filed 2025·Application pending·0 cites
- 2649US2007086399A1Method for acquiring positional information on a wireless terminal by periodically transmitting a data transmission requestOKI ELECTRIC IND CO LTD·Filed 2006·Application pending·0 cites
- 2749US2025272664A1Information processing apparatus, information processing method, and programNEC CORP·Filed 2025·Application pending·0 cites
- 2847US4749725AProduction process of pre-foamed particlesJAPAN STYRENE PAPER CORP·Filed 1986·Granted Jun 7, 1988·10 cites·19 claims
- 2946US2008288852A1Multicarrier communication system capable of switching modulation schemes during communicationOKI ELECTRIC IND CO LTD·Filed 2007·Application pending·0 cites
- 3045US2009175255A1Wireless terminal and base station devices for multi-hop communicationOKI SEMICONDUCTOR CO LTD·Filed 2009·Application pending·0 cites
- 3143US11261942B2Speed reducer capable of changing speedKOBE STEEL LTD·Filed 2018·Granted Mar 1, 2022·0 cites·9 claims
- 3243US2002131457A1Cell delay variation absorbing apparatusFiled 2001·Application pending·0 cites
- 3342US7515527B2SDH transmission apparatus and signal transmission methodFUJITSU LTD·Filed 2005·Granted Apr 7, 2009·0 cites·13 claims
- 3441US6278570B1Method and apparatus for moving a head arm assembly to a landing zone in a disk drive storage deviceIBM·Filed 1998·Granted Aug 21, 2001·5 cites·3 claims
- 3541US2005286480A1Radio apparatus joining an IBSS or ad hoc networkOKI ELECTRIC IND CO LTD·Filed 2005·Application pending·0 cites
- 3641US2006120339A1Method of controlling quality of service for a wireless LAN base station apparatusOKI ELECTRIC IND CO LTD·Filed 2005·Application pending·0 cites
- 3737US4564774ABinary logic device having input and output alternating signalsHITACHI LTD·Filed 1983·Granted Jan 14, 1986·3 cites·17 claims
- 3834US4393016AProcess for producing plate-like polystyrene resin foamJAPAN STYRENE PAPER CORP·Filed 1981·Granted Jul 12, 1983·4 cites·4 claims
- 3933US4260572AProcess for producing foamed polystyrene boardsJAPAN STYRENE PAPER CORP·Filed 1979·Granted Apr 7, 1981·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →