Inventor · disambiguated record
Kenji Nakagawa
Also filed as: NAKAGAWA KENJI
69 granted patents·10 pending applications·979 citations·filing 1974–2023
99Inventor score
Files withFUJITSU LTD25AUTONETWORKS TECHNOLOGIES LTD10MISUMI CORP6TOYOTA MOTOR CO LTD6HOYA GLASS WORKS LTD5
Top patents by PatentIndex Score
79 records- 0196US5364716APattern exposing method using phase shift and mask used thereforFUJITSU LTD·Filed 1992·Granted Nov 15, 1994·116 cites·15 claims
- 0295US11715307B2Support method, server, and design support systemMISUMI CORP·Filed 2021·Granted Aug 1, 2023·4 cites·4 claims
- 0395US7073356B2Drum type washing machineSANYO ELECTRIC CO·Filed 2002·Granted Jul 11, 2006·65 cites·16 claims
- 0493US9340856B2Ni—Fe—Cr alloy and engine valve welded with the same alloyFUKUDA METAL FOIL POWDER·Filed 2012·Granted May 17, 2016·29 cites·9 claims
- 0591US5465220AOptical exposure methodFUJITSU LTD·Filed 1993·Granted Nov 7, 1995·55 cites·6 claims
- 0689US3959000AHigh strength glass made by ion exchangeHOYA GLASS WORKS LTD·Filed 1974·Granted May 25, 1976·60 cites·7 claims
- 0786US5489509AMask, mask producing method and pattern forming method using maskFUJITSU LTD·Filed 1993·Granted Feb 6, 1996·40 cites·30 claims
- 0885US10431786B2Electricity storage moduleAUTONETWORKS TECHNOLOGIES LTD·Filed 2015·Granted Oct 1, 2019·2 cites·3 claims
- 0985US10210996B2Electrical storage moduleAUTONETWORKS TECHNOLOGIES LTD·Filed 2015·Granted Feb 19, 2019·2 cites·2 claims
- 1085US10119920B2Method comprising evaluating substrate by polarized parallel lightVISION PSYTEC CO LTD·Filed 2018·Granted Nov 6, 2018·5 cites·19 claims
- 1183US11955786B2Electrical junction boxAUTONETWORKS TECHNOLOGIES LTD·Filed 2020·Granted Apr 9, 2024·2 cites·4 claims
- 1283US4560666AHigh strength glass-ceramic containing apatite and alkaline earth metal silicate crystals and process for producing the sameHOYA CORP·Filed 1984·Granted Dec 24, 1985·50 cites·4 claims
- 1380US4643982AHigh-strength glass-ceramic containing anorthite crystals and process for producing the sameHOYA CORP·Filed 1985·Granted Feb 17, 1987·59 cites·5 claims
- 1479USD688210SElectrical connectorDDK LTD·Filed 2012·Granted Aug 20, 2013·30 cites·1 claims
- 1579US6420094B1Optical exposure methodFUJITSU LTD·Filed 2000·Granted Jul 16, 2002·13 cites·2 claims
- 1678US6045976AOptical exposure methodFUJITSU LTD·Filed 1996·Granted Apr 4, 2000·29 cites·4 claims
- 1777US10975483B2Diaphragm for alkaline water electrolysis, alkaline water electrolysis device, method for producing hydrogen, and method for producing diaphragm for alkaline water electrolysisASAHI CHEMICAL IND·Filed 2016·Granted Apr 13, 2021·1 cites·16 claims
- 1876US4881257ADeformation free X-ray exposure mask for X-ray lithographyFUJITSU LTD·Filed 1987·Granted Nov 14, 1989·25 cites·10 claims
- 1974US5472813APattern exposing method using phase shift and mask used thereforFUJITSU LTD·Filed 1994·Granted Dec 5, 1995·24 cites·5 claims
- 2073US5415952AFine pattern lithography with positive use of interferenceFUJITSU LTD·Filed 1993·Granted May 16, 1995·22 cites·13 claims
- 2172US8647923B2Method of manufacturing semiconductor deviceSAKAGUCHI KIYOFUMI·Filed 2010·Granted Feb 11, 2014·5 cites·8 claims
- 2270US10170805B2Electricity storage moduleAUTONETWORKS TECHNOLOGIES LTD·Filed 2015·Granted Jan 1, 2019·1 cites·5 claims
- 2369US5082695AMethod of fabricating an x-ray exposure maskFUJITSU LTD·Filed 1989·Granted Jan 21, 1992·19 cites·11 claims
- 2469US3961931AApparatus for heat-bonding optical fibersHOYA GLASS WORKS LTD·Filed 1975·Granted Jun 8, 1976·16 cites·7 claims
- 2568US10744815B2Wheel mounting structureTOYOTA MOTOR CO LTD·Filed 2018·Granted Aug 18, 2020·1 cites·4 claims
- 2668US10259259B2Assembled structure for tire wheel, brake rotor, and hubTOYOTA MOTOR CO LTD·Filed 2017·Granted Apr 16, 2019·1 cites·4 claims
- 2767US11704915B2Support method, server, and design support systemMISUMI CORP·Filed 2021·Granted Jul 18, 2023·0 cites·4 claims
- 2867US8871640B2Method of manufacturing semiconductor chipYONEHARA TAKAO·Filed 2010·Granted Oct 28, 2014·2 cites·4 claims
- 2967US5607821AOptical exposure methodFUJITSU LTD·Filed 1995·Granted Mar 4, 1997·18 cites·15 claims
- 3064US11721082B2Assistance device, design assistance system, server, and design assistance methodMISUMI CORP·Filed 2021·Granted Aug 8, 2023·0 cites·12 claims
- 3162US4097258AOptical fiberHOYA GLASS WORKS LTD·Filed 1976·Granted Jun 27, 1978·23 cites·4 claims
- 3261US5338647AReflection type photomask and reflection type photolithography method comprising a concavo-convex surfaceFUJITSU LTD·Filed 1992·Granted Aug 16, 1994·13 cites·14 claims
- 3361US5190836AReflection type photomask with phase shifterFUJITSU LTD·Filed 1991·Granted Mar 2, 1993·13 cites·12 claims
- 3460US8262291B2Coreless seal and rolling bearingAKAMATSU HIDEKI·Filed 2006·Granted Sep 11, 2012·2 cites·4 claims
- 3560US5637424AFine pattern lithography with positive use of interferenceFUJITSU LTD·Filed 1995·Granted Jun 10, 1997·16 cites·14 claims
- 3660US5276551AReticle with phase-shifters and a method of fabricating the sameFUJITSU LTD·Filed 1991·Granted Jan 4, 1994·13 cites·17 claims
- 3759US5786115AMask producing methodFUJITSU LTD·Filed 1997·Granted Jul 28, 1998·13 cites·43 claims
- 3858US12053770B2Cation-exchange membrane, electrolyzer, and method for producing cation-exchange membraneASAHI CHEMICAL IND·Filed 2019·Granted Aug 6, 2024·0 cites·17 claims
- 3958US10956710B2Support method, server, and design support systemMISUMI CORP·Filed 2017·Granted Mar 23, 2021·0 cites·5 claims
- 4058US9963795B2Gasket and electrolyserASAHI CHEMICAL IND·Filed 2014·Granted May 8, 2018·0 cites·20 claims
- 4158US6649054B2Magnetic filter deviceKAWASAKI STEEL CO·Filed 2001·Granted Nov 18, 2003·8 cites·1 claims
- 4257US6555922B1IC bonding pad combined with mark or monitorFUJITSU LTD·Filed 1999·Granted Apr 29, 2003·21 cites·13 claims
- 4355US12034829B2Transmission device, reception device, and base stationMITSUBISHI ELECTRIC CORP·Filed 2023·Granted Jul 9, 2024·0 cites·16 claims
- 4455US11074761B2Assistance device, design assistance system, server, and design assistance methodMISUMI CORP·Filed 2017·Granted Jul 27, 2021·0 cites·17 claims
- 4555US11040436B2Temporary tightening tool for fastening memberTOYOTA MOTOR CO LTD·Filed 2019·Granted Jun 22, 2021·0 cites·5 claims
- 4655US6093511AMethod of manufacturing semiconductor deviceFUJITSU LTD·Filed 1997·Granted Jul 25, 2000·20 cites·19 claims
- 4754US6085874ARail-climbing elevator counterweight having flat machinesOTIS ELEVATOR CO·Filed 1998·Granted Jul 11, 2000·18 cites·10 claims
- 4854US5514498AReticle with phase-shifters and a method of fabricating the sameFUJITSU LTD·Filed 1993·Granted May 7, 1996·10 cites·17 claims
- 4952US5004927AProcess for forming a fine pattern having a high aspect ratioFUJITSU LTD·Filed 1990·Granted Apr 2, 1991·10 cites·20 claims
- 5051US11820169B2Wheel holding member for a vehicleTOYOTA MOTOR CO LTD·Filed 2020·Granted Nov 21, 2023·0 cites·8 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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