Inventor · disambiguated record
Akira Kawai
Also filed as: KAWAI AKIRA
44 granted patents·11 pending applications·834 citations·filing 1984–2023
98Inventor score
Files withTOSOH CORP12NISSAN MOTOR11MITSUBISHI ELECTRIC CORP5NIPPON TELEGRAPH & TELEPHONE5MITSUBISHI PAPER MILLS LTD3
Top patents by PatentIndex Score
55 records- 0194US8847532B2Electric toolMIYAZAKI HIROSHI·Filed 2011·Granted Sep 30, 2014·35 cites·8 claims
- 0293US9746860B2Electric tool adaptor and electric tool system using sameSAKAUE MASAAKI·Filed 2011·Granted Aug 29, 2017·18 cites·7 claims
- 0390US9178380B2Charger apparatus capable of determining deterioration of second batteryKAWAI AKIRA·Filed 2012·Granted Nov 3, 2015·23 cites·16 claims
- 0490US6059342ACar body structureNISSAN MOTOR·Filed 1999·Granted May 9, 2000·85 cites·23 claims
- 0589US7612525B2Electrical apparatusMATSUSHITA ELECTRIC WORKS LTD·Filed 2006·Granted Nov 3, 2009·10 cites·12 claims
- 0688US5934730AEnergy absorbing door panelNISSAN MOTOR·Filed 1997·Granted Aug 10, 1999·56 cites·12 claims
- 0786US7553434B2Fine channel device, fine particle producing method and solvent extraction methodTOSOH CORP·Filed 2008·Granted Jun 30, 2009·13 cites·8 claims
- 0884US12497333B2Zirconia sintered body and production method for the sameKCM CORP·Filed 2023·Granted Dec 16, 2025·0 cites·4 claims
- 0983US5195072AError detecting device for optical headTOSOH CORP·Filed 1989·Granted Mar 16, 1993·29 cites·8 claims
- 1082US9142993B2Charge circuit, and battery-charger assemblage with the charge circuitPANASONIC CORP·Filed 2012·Granted Sep 22, 2015·8 cites·3 claims
- 1182US6441075B2Polyolefin-based resin composition and automotive molded plastic made from sameNISSAN MOTOR·Filed 1997·Granted Aug 27, 2002·48 cites·20 claims
- 1282US6036251AEnergy absorbing door panelKASAI KOGYO KK·Filed 1999·Granted Mar 14, 2000·41 cites·18 claims
- 1381US8524173B2Microchannel structure and fine-particle production method using the sameYAMANAKA MAHO·Filed 2007·Granted Sep 3, 2013·20 cites·15 claims
- 1481US7641871B2Fine channel device and a chemically operating method for fluid using the deviceTOSOH CORP·Filed 2003·Granted Jan 5, 2010·27 cites·26 claims
- 1578US8405348B2Charging circuitKAWAI AKIRA·Filed 2010·Granted Mar 26, 2013·7 cites·10 claims
- 1678US6791677B2Information measuring apparatus using a fine channel deviceTOSOH CORP·Filed 2002·Granted Sep 14, 2004·15 cites·9 claims
- 1777US7201873B2Fine channel device, method for producing the fine channel device and use of the sameTOSOH CORP·Filed 2002·Granted Apr 10, 2007·13 cites·15 claims
- 1877US5833303APillar construction for vehicle bodiesNISSAN MOTOR·Filed 1996·Granted Nov 10, 1998·44 cites·15 claims
- 1977US5264310AAlignment mark having regions formed by energy beam irradiation therein and method of manufacturing the sameMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Nov 23, 1993·30 cites·9 claims
- 2073US5001084AMethod for applying a treatment liquid on a semiconductor waferMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Mar 19, 1991·50 cites·4 claims
- 2171US6309011B1Impact-absorbing system for automotive vehicleNISSAN MOTOR·Filed 2000·Granted Oct 30, 2001·17 cites·2 claims
- 2267US5965654APolyolefin-based plastic composition and automotive molded article formed thereofNISSAN MOTOR·Filed 1997·Granted Oct 12, 1999·26 cites·20 claims
- 2367US5741044APillar garnish support structure for automobileNISSAN MOTOR·Filed 1996·Granted Apr 21, 1998·33 cites·7 claims
- 2467US5080586AApical foramen position detector for use in dental treatmentOSADA RESEARCH INST LTD·Filed 1990·Granted Jan 14, 1992·48 cites·8 claims
- 2565US7718099B2Fine channel device, fine particle producing method and solvent extraction methodTOSOH CORP·Filed 2003·Granted May 18, 2010·10 cites·18 claims
- 2664US11820695B2Manufacturing method for preform of multi-core fiber and manufacturing method for multi-core fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Granted Nov 21, 2023·0 cites·12 claims
- 2764US2024417331A1Zirconia sintered body and method for producing sameKCM CORP·Filed 2022·Application pending·0 cites
- 2860US2010019408A1Minute flow path structure body and dieTOSOH CORP·Filed 2009·Application pending·0 cites
- 2959US7338641B2Fine channel device, desksize chemical plant and fine particle producing apparatus employing themTOSOH CORP·Filed 2003·Granted Mar 4, 2008·4 cites·22 claims
- 3058US5263008AMagneto-optical disk device having a plurality of independently moving magneto-optical heads in the head windowTOSOH CORP·Filed 1991·Granted Nov 16, 1993·13 cites·18 claims
- 3158US2010051543A1Fine channel device and a chemically operating method for fluid using the deviceTOSOH CORP·Filed 2009·Application pending·0 cites
- 3256US6095591AInterior material for automotive vehicleNISSAN MOTOR·Filed 1997·Granted Aug 1, 2000·18 cites·6 claims
- 3354US6170902B1Door trim covering a door for a vehicleNISSAN MOTOR·Filed 1997·Granted Jan 9, 2001·21 cites·19 claims
- 3454US4533599AMicrocapsule and process for their productionMITSUBISHI PAPER MILLS LTD·Filed 1984·Granted Aug 6, 1985·12 cites·8 claims
- 3552US9484567B2Battery packPANASONIC IP MAN CO LTD·Filed 2015·Granted Nov 1, 2016·0 cites·7 claims
- 3652US5927786ACar body structureNISSAN MOTOR·Filed 1997·Granted Jul 27, 1999·20 cites·2 claims
- 3752US2025392390A1Signal processing apparatus, signal processing method, and computer programNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3852US2025096919A1Characteristic measurement apparatus, characteristic measurement method and computer programNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3951US2006231136A1Fine channel device, fine particle producing method and solvent extraction methodTOSOH CORP·Filed 2006·Application pending·0 cites
- 4050US7570000B2Control drive circuit for electric power toolMATSUSHITA ELECTRIC WORKS LTD·Filed 2007·Granted Aug 4, 2009·1 cites·12 claims
- 4149US6750390B2Automatic performing apparatus and electronic instrumentKAWAI MUSICAL INSTR MFG CO·Filed 2002·Granted Jun 15, 2004·4 cites·11 claims
- 4249US2025306076A1Measurement apparatus, measurement compensation apparatus and measurement methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 4347US10263543B2Electric tool systemPANASONIC IP MAN CO LTD·Filed 2016·Granted Apr 16, 2019·0 cites·5 claims
- 4447US5403422AMethod for producing decorative platesDAINIPPON PRINTING CO LTD·Filed 1994·Granted Apr 4, 1995·12 cites·4 claims
- 4546US2024413922A1Optical transmission system, transmitter, and control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4644US2024259095A1Waveguide estimation apparatus, waveguide estimation method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4742US4931422ANo-carbon pressure-sensitive copying paperMITSUBISHI PAPER MILLS LTD·Filed 1988·Granted Jun 5, 1990·3 cites·6 claims
- 4840US10468648B2Battery pack for electric power toolPANASONIC IP MAN CO LTD·Filed 2016·Granted Nov 5, 2019·0 cites·14 claims
- 4939US4702796AMethod for fabricting a semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Oct 27, 1987·9 cites·10 claims
- 5039US2007053812A1Minute flow path structure body and dieTOSOH CORP·Filed 2004·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →