Inventor · disambiguated record
Keiichi Hayashi
Also filed as: HAYASHI KEIICHI
40 granted patents·14 pending applications·494 citations·filing 1987–2020
97Inventor score
Files withNEC CORP17TOYOTA JIDOSHOKKI KK4KOMATSU MFG CO LTD2MITSUBISHI HEAVY IND ENVIRONMENTAL & CHEMICAL ENG CO LTD2MIZUNO KAYO2
Top patents by PatentIndex Score
54 records- 0187US4925770AContrast-enhancing agent for photolithographyAGENCY IND SCIENCE TECHN·Filed 1988·Granted May 15, 1990·68 cites·7 claims
- 0282US12024856B2Work machineKOMATSU MFG CO LTD·Filed 2020·Granted Jul 2, 2024·2 cites·9 claims
- 0380US4722779AAir/fuel ratio sensorNGK SPARK PLUG CO·Filed 1987·Granted Feb 2, 1988·44 cites·3 claims
- 0477US8578687B2Mower deck lifting device of ride-on mowerEBIHARA TOMOYUKI·Filed 2010·Granted Nov 12, 2013·10 cites·12 claims
- 0577US7045183B2Easy-to-open tubular sealed casingJAPAN PATENT MAN CO LTD·Filed 2001·Granted May 16, 2006·24 cites·19 claims
- 0677US6650913B1Mobile telephone unit and method used in this unit for accessing internet siteNEC CORP·Filed 2000·Granted Nov 18, 2003·20 cites·23 claims
- 0773US7017115B2Portable information terminal equipment and display method thereforNEC CORP·Filed 2001·Granted Mar 21, 2006·15 cites·18 claims
- 0872US9819008B2Negative-electrode stuff and negative electrode for use in lithium-ion secondary battery as well as lithium-ion secondary batteryTOYOTA JIDOSHOKKI KK·Filed 2016·Granted Nov 14, 2017·1 cites·6 claims
- 0972US9819009B2Negative-electrode stuff and negative electrode for use in lithium-ion secondary battery as well as lithium-ion secondary batteryTOYOTA JIDOSHOKKI KK·Filed 2016·Granted Nov 14, 2017·1 cites·12 claims
- 1071US9819007B2Negative-electrode material and negative electrode for use in lithium-ion secondary battery as well as lithium-ion secondary batteryTOYOTA JIDOSHOKKI KK·Filed 2012·Granted Nov 14, 2017·1 cites·26 claims
- 1170US7783324B2Mobile communication system and devices used thereforNEC CORP·Filed 2005·Granted Aug 24, 2010·3 cites·14 claims
- 1270US7214249B2Method for conducting electric activation of electric double layer capacitorsPOWER SYSTEMS CO LTD·Filed 2006·Granted May 8, 2007·3 cites·7 claims
- 1370US6282612B1Removable memory device for portable terminal deviceNEC CORP·Filed 1998·Granted Aug 28, 2001·65 cites·14 claims
- 1470US6192259B1Portable radio apparatus having function for compressing and transmitting dataNEC CORP·Filed 1997·Granted Feb 20, 2001·63 cites·13 claims
- 1570US5639579APhotosensitive colored resin composition, colored image formation method of color filter, and formation method of black matrixTOYO GOSEI KOGYO KK·Filed 1995·Granted Jun 17, 1997·33 cites·12 claims
- 1663US6963761B2System and method for sounding a music accompanied by light or vibrationNEC CORP·Filed 2001·Granted Nov 8, 2005·6 cites·30 claims
- 1762US7228126B2Portable communication terminal and method of transmission of electronic mailNEC CORP·Filed 2005·Granted Jun 5, 2007·1 cites·10 claims
- 1860US7484580B2TractorYANMAR CO LTD·Filed 2003·Granted Feb 3, 2009·9 cites·2 claims
- 1958US6991042B2Working machine lifting device of tractorYANMAR AGRICULT EQUIP·Filed 2003·Granted Jan 31, 2006·12 cites·18 claims
- 2057US6321094B1Access method through radio mobile communication systemNEC CORP·Filed 1998·Granted Nov 20, 2001·41 cites·6 claims
- 2156US6717531B2Keyboard device and a method of controlling a power supply incorporated in the keyboard deviceNEC CORP·Filed 2001·Granted Apr 6, 2004·5 cites·12 claims
- 2256US6353088B1Method for removing volatile matter from polymer solution compositionNIPPON STEEL CHEMICAL CO·Filed 1999·Granted Mar 5, 2002·17 cites·3 claims
- 2355US8568917B2Material for contact components or battery components, and battery using the sameOKANO TAKUYUKI·Filed 2007·Granted Oct 29, 2013·1 cites·10 claims
- 2454US2007202860A1Portable communication terminal and method of transmission of electronic mailNEC CORP·Filed 2007·Application pending·0 cites
- 2553US9214677B2Lithium ion secondary battery electrode, manufacturing process for the same, and lithium ion secondary battery using the electrodeHIRAKAWA YUICHI·Filed 2012·Granted Dec 15, 2015·0 cites·4 claims
- 2651US9306220B2Lithium ion secondary battery electrode, manufacturing process for the same, and lithium ion secondary battery using the electrodeNIWA JUNICHI·Filed 2012·Granted Apr 5, 2016·0 cites·10 claims
- 2751US6792453B1Information terminal unit, character input control method to be used in the same, and storage medium recording control program thereforNEC CORP·Filed 2000·Granted Sep 14, 2004·2 cites·26 claims
- 2850US11703219B2Gas swirling state determination system and gasification melting furnaceMITSUBISHI HEAVY IND ENVIRONMENTAL & CHEMICAL ENG CO LTD·Filed 2019·Granted Jul 18, 2023·0 cites·5 claims
- 2949US9337477B2Lithium secondary battery electrode including coated layer having acrylic copolymer chemically bonded to binder of active material layer and manufacturing process for the sameNIWA JUNICHI·Filed 2012·Granted May 10, 2016·0 cites·8 claims
- 3048US8822083B2Negative electrode for lithium-ion secondary battery and manufacturing process for the sameMIYOSHI MANABU·Filed 2010·Granted Sep 2, 2014·0 cites·3 claims
- 3148US7856866B2Method of operating an atomic force microscope in tapping mode with a reduced impact forceUNIV MARYLAND·Filed 2007·Granted Dec 28, 2010·2 cites·16 claims
- 3248US7151924B2Communication system, hold control method therefor, telephone set, control method therefor and recording mediumNEC CORP·Filed 2003·Granted Dec 19, 2006·0 cites·47 claims
- 3347US2013209796A1Polycarbonate with hard coat layerYAMADA HIROAKI·Filed 2011·Application pending·0 cites
- 3446US2003114150A1Mobile telephone and its control methodNEC CORP·Filed 2002·Application pending·0 cites
- 3546US2015050564A1Secondary batteryTOYOTA JIDOSHOKKI KK·Filed 2012·Application pending·0 cites
- 3646US2003027604A1Mobile communication terminal device capable of changing output sound and output sound control methodNEC CORP·Filed 2002·Application pending·0 cites
- 3746US2006116184A1Mobile terminal, content setting method therefor, content setting system, and computer program for a mobile terminalNEC CORP·Filed 2005·Application pending·0 cites
- 3845US11492781B2Work vehicleKOMATSU MFG CO LTD·Filed 2018·Granted Nov 8, 2022·0 cites·8 claims
- 3945US9735422B2Lithium ion secondary cellHAYASHI KEIICHI·Filed 2012·Granted Aug 15, 2017·0 cites·10 claims
- 4045US5889604AMethod of and apparatus for data communications between portable information terminalsNEC CORP·Filed 1996·Granted Mar 30, 1999·14 cites·3 claims
- 4145US5603782ABattery can, sheet for forming battery can, and method for manufacturing sheetKATAYAMA TOKUSHU KOGYO KK·Filed 1995·Granted Feb 18, 1997·14 cites·11 claims
- 4245US2016014956A1Electric work vehicleYANMAR CO LTD·Filed 2013·Application pending·0 cites
- 4344US2013330607A1Electrolytic solution and lithium-ion secondary batteryMIZUNO KAYO·Filed 2012·Application pending·0 cites
- 4444US2013337344A1Lithium ion secondary batteryMIZUNO KAYO·Filed 2012·Application pending·0 cites
- 4543US10190768B2Gasification melting facilityMITSUBISHI HEAVY IND ENVIRONMENTAL & CHEMICAL ENG CO LTD·Filed 2015·Granted Jan 29, 2019·0 cites·5 claims
- 4643US2001024965A1Mobile communication terminal and ringing method thereofFiled 2001·Application pending·0 cites
- 4741US2002063692A1Keyboard device capable of being used as external keyboard device for portable terminalNEC CORP·Filed 2001·Application pending·0 cites
- 4840US8517139B2TractorKOMATSU MASAKAZU·Filed 2004·Granted Aug 27, 2013·5 cites·20 claims
- 4938US5169170ASandwich type skiYAMAHA CORP·Filed 1991·Granted Dec 8, 1992·7 cites·3 claims
- 5038US2006238958A1Positive electrode for electric double layer capacitors and method for the production thereofMITSUI MINING COMPANY LTD·Filed 2006·Application pending·0 cites
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →