Inventor · disambiguated record
Akira Arai
Also filed as: ARAI AKIRA · FUJIE KUNIO · MISHINA HARUO
65 granted patents·19 pending applications·1,154 citations·filing 1977–2024
99Inventor score
Top patents by PatentIndex Score
84 records- 0194US5054280AGas turbine combustor and method of running the sameHITACHI LTD·Filed 1990·Granted Oct 8, 1991·82 cites·6 claims
- 0294US4808084AApparatus for transferring small amount of fluidHITACHI LTD·Filed 1987·Granted Feb 28, 1989·82 cites·10 claims
- 0393US4726738AMotor-driven compressor provided with torque control deviceHITACHI LTD·Filed 1986·Granted Feb 23, 1988·61 cites·20 claims
- 0492US4174196AScrew fluid machineHITACHI LTD·Filed 1977·Granted Nov 13, 1979·46 cites·14 claims
- 0591US4977508AInternal combustion engine equipped with a torque controllerHITACHI LTD·Filed 1986·Granted Dec 11, 1990·52 cites·15 claims
- 0691US4300629ACross-fin tube type heat exchangerHITACHI LTD·Filed 1979·Granted Nov 17, 1981·61 cites·25 claims
- 0790US5127229AGas turbine combustorHITACHI LTD·Filed 1991·Granted Jul 7, 1992·56 cites·6 claims
- 0889US4432694ABlowerHITACHI LTD·Filed 1981·Granted Feb 21, 1984·62 cites·3 claims
- 0988US11008707B2Sheet manufacturing apparatus, sheet manufacturing system, control method of a sheet manufacturing apparatus, and sheet manufacturing methodSEIKO EPSON CORP·Filed 2018·Granted May 18, 2021·4 cites·11 claims
- 1086US6558482B1Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2000·Granted May 6, 2003·24 cites·11 claims
- 1186US4557055ARainbow projectorNIHON OUYOU KOUGAKU KABUSHIKI·Filed 1984·Granted Dec 10, 1985·45 cites·3 claims
- 1286US4365667AHeat exchangerHITACHI LTD·Filed 1980·Granted Dec 28, 1982·48 cites·8 claims
- 1385US8938084B2Speaker device, sound source simulation system, and echo cancellation systemARAI AKIRA·Filed 2011·Granted Jan 20, 2015·9 cites·11 claims
- 1484US4468720AVariable mask device for an illuminatorARAI AKIRA·Filed 1981·Granted Aug 28, 1984·38 cites·7 claims
- 1583US7481295B2Speaker system and speaker enclosureYAMAHA CORP·Filed 2006·Granted Jan 27, 2009·12 cites·4 claims
- 1683US6527875B2Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2001·Granted Mar 4, 2003·20 cites·10 claims
- 1783US4503907AHeat exchanger coated with aqueous coating compositionHITACHI LTD·Filed 1980·Granted Mar 12, 1985·50 cites·9 claims
- 1882US6551418B2Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2001·Granted Apr 22, 2003·19 cites·14 claims
- 1982US4822250AApparatus for transferring small amount of fluidHITACHI LTD·Filed 1988·Granted Apr 18, 1989·41 cites·7 claims
- 2080US6317405B1Method of and device for controlling light power to be used for recording on optical diskYAMAHA CORP·Filed 1999·Granted Nov 13, 2001·34 cites·2 claims
- 2180US4474026ARefrigerating apparatusHITACHI LTD·Filed 1982·Granted Oct 2, 1984·53 cites·16 claims
- 2279US6796363B2Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnetsSEIKO EPSON CORP·Filed 2001·Granted Sep 28, 2004·18 cites·21 claims
- 2377US6401799B1Method of manufacturing magnet material, ribbon-shaped magnet material, magnetic powder and bonded magnetSEIKO EPSON CORP·Filed 2000·Granted Jun 11, 2002·14 cites·7 claims
- 2476US4890453AMethod and apparatus for burning gaseous fuel, wherein fuel composition variesHITACHI LTD·Filed 1988·Granted Jan 2, 1990·26 cites·7 claims
- 2572US9398376B2Electroacoustic transducerYAMAHA CORP·Filed 2014·Granted Jul 19, 2016·3 cites·15 claims
- 2670US6951625B2Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2003·Granted Oct 4, 2005·10 cites·9 claims
- 2770US6500277B1Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2000·Granted Dec 31, 2002·10 cites·10 claims
- 2870US4175416AApparatus for manufacturing heat transfer tubesHITACHI LTD·Filed 1978·Granted Nov 27, 1979·12 cites·19 claims
- 2968US6979374B2Magnetic powder, manufacturing method of magnetic powder and bonded magnetsSEIKO EPSON CORP·Filed 2001·Granted Dec 27, 2005·9 cites·18 claims
- 3067US8028792B2Speaker apparatusYAMAHA CORP·Filed 2009·Granted Oct 4, 2011·3 cites·3 claims
- 3167US7211361B2Image formation apparatus and image formation methodSEIKO EPSON CORP·Filed 2006·Granted May 1, 2007·2 cites·10 claims
- 3267US6855265B2Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2003·Granted Feb 15, 2005·8 cites·20 claims
- 3367US2024399298A1Gas Separation MembraneSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 3466US8094842B2Loudspeaker system and loudspeaker enclosureNORO MASAO·Filed 2007·Granted Jan 10, 2012·5 cites·2 claims
- 3566US2023260683A1Magnetic Beads, Magnetic Beads Dispersion Liquid, Method Of Manufacturing Magnetic Beads, And Method Of Manufacturing Magnetic Beads Dispersion LiquidSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 3666US2024145138A1Magnetic bead, magnetic bead dispersion liquid, and method of manufacturing sameSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 3763US6648989B2Magnetic powder and bonded magnetSEIKO EPSON CORP·Filed 2001·Granted Nov 18, 2003·9 cites·18 claims
- 3862US6896745B2Magnetic powder, manufacturing method of magnetic powder and bonded magnetsSEIKO EPSON CORP·Filed 2001·Granted May 24, 2005·6 cites·19 claims
- 3962US6536507B1Cooling roll, method for manufacturing magnet material, ribbon shaped magnet material, magnetic powder and bonded magnetSEIKO EPSON CORP·Filed 2000·Granted Mar 25, 2003·7 cites·15 claims
- 4061US6892792B2Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnetsSEIKO EPSON CORP·Filed 2001·Granted May 17, 2005·5 cites·14 claims
- 4161US6478891B1Ribbon shaped magnet material magnetic powder and rare earth bonded magnetSEIKO EPSON CORP·Filed 2000·Granted Nov 12, 2002·7 cites·45 claims
- 4261US4435962ARefrigerating apparatusSHIN MEIWA IND CO LTD·Filed 1981·Granted Mar 13, 1984·25 cites·4 claims
- 4361US2023078743A1Insulating Material-Coated Soft Magnetic Powder, Method For Producing Insulating Material-Coated Soft Magnetic Powder, Dust Core, Magnetic Element, Electronic Device, And Moving BodySEIKO EPSON CORP·Filed 2022·Application pending·0 cites
- 4460US7138070B2Magnetic material manufacturing method, ribbon-shaped magnetic materials, powdered magnetic material and bonded magnetsSEIKO EPSON CORP·Filed 2003·Granted Nov 21, 2006·2 cites·11 claims
- 4560US2023317331A1Magnetic Bead And Method For Producing Magnetic BeadSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 4659US6916385B2Method of manufacturing magnet materials, and ribbon-shaped magnet materials, powdered magnet materials and bonded magnetsSEIKO EPSON CORP·Filed 2001·Granted Jul 12, 2005·2 cites·15 claims
- 4759US6830633B2Magnetic material manufacturing method, ribbon-shaped magnetic materials, powdered magnetic materials and bonded magnetsSEIKO EPSON CORP·Filed 2001·Granted Dec 14, 2004·4 cites·22 claims
- 4856US12093852B2Vehicle use ticket assignment systemNOMURA RES INST LTD·Filed 2022·Granted Sep 17, 2024·0 cites·7 claims
- 4956US6521054B2Magnetic powder and isotropic bonded magnetSEIKO EPSON CORP·Filed 2001·Granted Feb 18, 2003·5 cites·11 claims
- 5055US2020043037A1Point management system and point management programNOMURA RES INST LTD·Filed 2019·Application pending·0 cites
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →