Inventor · disambiguated record
Hajime Arai
Also filed as: ARAI HAJIME · YOKOYAMA EIJI
87 granted patents·7 pending applications·1,622 citations·filing 1975–2025
99Inventor score
Files withNHK SPRING CO LTD26TOYOTA MOTOR CO LTD23ARAI HAJIME10MITSUBISHI ELECTRIC CORP10GS YUASA INT LTD3
Top patents by PatentIndex Score
94 records- 0197US7701674B2Head suspension with multilayer ground, flexure with multilayer ground, and methods of manufacturing themNHK SPRING CO LTD·Filed 2006·Granted Apr 20, 2010·46 cites·14 claims
- 0296US7643252B2Head suspension having wiring disposed with conductive layerNHK SPRING CO LTD·Filed 2006·Granted Jan 5, 2010·49 cites·15 claims
- 0396US7092215B2Disc drive suspension including a wired flexure with conductors arranged to reduce crosstalkNHK SPRING CO LTD·Filed 2003·Granted Aug 15, 2006·77 cites·4 claims
- 0496US6963471B2Wiring member of a disc drive suspension having an insulating layer with thick-walled and thin-walled portionsNHK SPRING CO LTD·Filed 2003·Granted Nov 8, 2005·79 cites·12 claims
- 0595US4491657APolyester multifilament yarn and process for producing thereofTORAY INDUSTRIES·Filed 1982·Granted Jan 1, 1985·105 cites·8 claims
- 0695US4233355ASeparable composite fiber and process for producing sameTORAY INDUSTRIES·Filed 1979·Granted Nov 11, 1980·64 cites·12 claims
- 0794US8111483B2Disk drive flexureARAI HAJIME·Filed 2010·Granted Feb 7, 2012·30 cites·8 claims
- 0894US7692899B2Head suspension having wiring disposed in contact with slightly conductive flexible resinNHK SPRING CO LTD·Filed 2006·Granted Apr 6, 2010·43 cites·14 claims
- 0993US8503133B2Flexure to be secured to a load beam of a disk drive suspensionARAI HAJIME·Filed 2010·Granted Aug 6, 2013·24 cites·3 claims
- 1093US4051932AFluid pressure control system for a hydraulic transmission with a lock-up clutchTOYOTA MOTOR CO LTD·Filed 1975·Granted Oct 4, 1977·49 cites·2 claims
- 1192US4174196AScrew fluid machineHITACHI LTD·Filed 1977·Granted Nov 13, 1979·46 cites·14 claims
- 1291US8300363B2Wiring structure of flexureARAI HAJIME·Filed 2011·Granted Oct 30, 2012·33 cites·4 claims
- 1390US8882316B2Vehicular lampNATSUME KAZUNORI·Filed 2011·Granted Nov 11, 2014·12 cites·9 claims
- 1490US4416168ATransmission and sub-transmission with mutually contending helical gearsTOYOTA MOTOR CO LTD·Filed 1980·Granted Nov 22, 1983·51 cites·5 claims
- 1589US4539859AShift mechanism in a manual transmissionTOYOTA MOTOR CO LTD·Filed 1982·Granted Sep 10, 1985·45 cites·2 claims
- 1689US4528869AAutomatic transmission for vehiclesTOYOTA MOTOR CO LTD·Filed 1980·Granted Jul 16, 1985·42 cites·5 claims
- 1788US5478759AMethod of manufacturing semiconductor device with retrograde wellsMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Dec 26, 1995·98 cites·39 claims
- 1887US8705210B2Interleaved circuit of flexure for disk driveNHK SPRING CO LTD·Filed 2013·Granted Apr 22, 2014·8 cites·15 claims
- 1986US10044016B2Storage batteryGS YUASA INT LTD·Filed 2016·Granted Aug 7, 2018·2 cites·11 claims
- 2086US8890553B2Method of and apparatus for detecting cracks in piezoelectric elementFURUTA EIJIRO·Filed 2011·Granted Nov 18, 2014·7 cites·14 claims
- 2185US10119669B2Vehicle lampKOITO MFG CO LTD·Filed 2017·Granted Nov 6, 2018·3 cites·12 claims
- 2285US9972875B2Alkaline storage batteryGS YUASA INT LTD·Filed 2015·Granted May 15, 2018·2 cites·10 claims
- 2385US5348127AFluid coupling power transmission with lockup clutchTOYOTA MOTOR CO LTD·Filed 1992·Granted Sep 20, 1994·37 cites·49 claims
- 2484US10239442B2Vehicular lampKOITO MFG CO LTD·Filed 2017·Granted Mar 26, 2019·3 cites·9 claims
- 2584US9064516B2Disk drive flexureNHK SPRING CO LTD·Filed 2014·Granted Jun 23, 2015·7 cites·6 claims
- 2681US4404869APower transmission unit for motor vehiclesTOYOTA MOTOR CO LTD·Filed 1981·Granted Sep 20, 1983·30 cites·3 claims
- 2781US4368650ACompact transmission, including a main transmission and a subtransmissionTOYOTA MOTOR CO LTD·Filed 1980·Granted Jan 18, 1983·33 cites·9 claims
- 2881US4186557ATorque converter with narrowed flow passagesTOYOTA MOTOR CO LTD·Filed 1979·Granted Feb 5, 1980·33 cites·7 claims
- 2980US9449624B2Flexure of disk drive suspensionNHK SPRING CO LTD·Filed 2015·Granted Sep 20, 2016·5 cites·3 claims
- 3079US9841457B1Pseudo flexure for disk drive and method of testing electronic circuit for disk driveNHK SPRING CO LTD·Filed 2016·Granted Dec 12, 2017·5 cites·15 claims
- 3179US8218267B2Head suspension flexure with conductive polymer layerARAI HAJIME·Filed 2008·Granted Jul 10, 2012·7 cites·9 claims
- 3277US12241913B2Contact probe, probe holder and probe unitNHK SPRING CO LTD·Filed 2023·Granted Mar 4, 2025·0 cites·10 claims
- 3377US8189297B2Disk drive flexure having a metal base with a band-like portion overlapping a gap between conductors for data writingARAI HAJIME·Filed 2010·Granted May 29, 2012·4 cites·2 claims
- 3477US4289220AHydraulic coupling with a lock-up clutchTOYOTA MOTOR CO LTD·Filed 1979·Granted Sep 15, 1981·25 cites·8 claims
- 3577US4287791APower transmission unit for automotive vehiclesTOYOTA MOTOR CO LTD·Filed 1979·Granted Sep 8, 1981·35 cites·2 claims
- 3677US2025112232A1Cathode active material and aqueous batteryTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 3776US10476075B2Zinc negative electrode material for secondary cellNISSAN MOTOR·Filed 2016·Granted Nov 12, 2019·1 cites·9 claims
- 3876US4292860ATransfer device associated with power transmissionTOYOTA MOTOR CO LTD·Filed 1978·Granted Oct 6, 1981·23 cites·2 claims
- 3976US4271715ATransmission equipped with auxiliary speed changing gearTOYOTA MOTOR CO LTD·Filed 1979·Granted Jun 9, 1981·22 cites·3 claims
- 4076US2025164525A1Contact probe, probe holder and probe unitNHK SPRING CO LTD·Filed 2025·Application pending·0 cites
- 4175US5695893AMaterial for use in the positive electrodes of lithium batteries, its manufacture, and lithium batteries incorporating this materialNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted Dec 9, 1997·47 cites·10 claims
- 4273US4922321ASemiconductor device and a method of producing sameMITSUBISHI ELECTRIC CORP·Filed 1987·Granted May 1, 1990·41 cites·10 claims
- 4372US4126419ACombustion device for burning waste gases containing combustible and noxious mattersKATABUCHI KEICHI·Filed 1977·Granted Nov 21, 1978·31 cites·8 claims
- 4471US5270253AMethod of producing semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Dec 14, 1993·35 cites·12 claims
- 4570US10513097B2Decorative sheet, decorative molded article, and decorative moduleSEIREN CO LTD·Filed 2017·Granted Dec 24, 2019·1 cites·16 claims
- 4670US6967820B2Head suspension for disk driveNHK SPRING CO LTD·Filed 2002·Granted Nov 22, 2005·10 cites·7 claims
- 4769US4531623AShift fork in a transmission for an automobile including pawl members with stepped outer portionsTOYOTA MOTOR CO LTD·Filed 1982·Granted Jul 30, 1985·21 cites·1 claims
- 4869US4403526AManual transmission and hydraulically operated subtransmissionMOBIL OIL CORP·Filed 1980·Granted Sep 13, 1983·21 cites·4 claims
- 4968US5300804AMask ROM device having highly integrated memory cell structureMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Apr 5, 1994·28 cites·4 claims
- 5068US4299140ATransfer device for four wheel driveTOYOTA MOTOR CO LTD·Filed 1978·Granted Nov 10, 1981·19 cites·4 claims
Showing the top 50 of 94 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →