Inventor · disambiguated record
Shoichi Ishikawa
Also filed as: ISHIKAWA SHOICHI
46 granted patents·4 pending applications·740 citations·filing 1976–2025
98Inventor score
Top patents by PatentIndex Score
50 records- 0198US9978541B2Electric toolMAKITA CORP·Filed 2015·Granted May 22, 2018·16 cites·16 claims
- 0297US10888989B2Electrical deviceMAKITA CORP·Filed 2018·Granted Jan 12, 2021·9 cites·15 claims
- 0397US4823638ATooth profile of spline of strain wave gearingHARMONIC DRIVE SYSTEMS·Filed 1987·Granted Apr 25, 1989·88 cites·4 claims
- 0496US4974470ATooth profile of one of circular splines of flat-shaped strain wave gearingHARMONIC DRIVE SYSTEMS·Filed 1988·Granted Dec 4, 1990·79 cites·3 claims
- 0591US6526849B1Negative deflection flexible meshing type gear device having passing tooth profile with maximized tooth heightHARMONIC DRIVE SYSTEMS·Filed 2000·Granted Mar 4, 2003·54 cites·5 claims
- 0691US4051745AMultiple-contact type w-n gearHASEGAWA HAGURUMA KK·Filed 1976·Granted Oct 4, 1977·51 cites·14 claims
- 0789US9534681B2Wave gear device having tapered flexible external gearISHIKAWA SHOICHI·Filed 2011·Granted Jan 3, 2017·11 cites·4 claims
- 0888US10788114B2Strain wave gearing with full separation of two stressesHARMONIC DRIVE SYSTEMS·Filed 2018·Granted Sep 29, 2020·4 cites·6 claims
- 0987US10788115B2Strain wave gearing with full separation of two stressesHARMONIC DRIVE SYSTEMS·Filed 2016·Granted Sep 29, 2020·4 cites·6 claims
- 1087US7694607B2Wave gear drive with continuous meshing, high ratcheting torque tooth profileHARMONIC DRIVE SYSTEMS·Filed 2007·Granted Apr 13, 2010·18 cites·5 claims
- 1185US8028603B2Method for setting gear tooth profile in flat wave gear device on side where gears have same number of teethHARMONIC DRIVE SYSTEMS·Filed 2008·Granted Oct 4, 2011·16 cites·6 claims
- 1285US5782143AFlexible meshing type gear device with negative deflection passing tooth profileHARMONIC DRIVE SYSTEMS·Filed 1994·Granted Jul 21, 1998·38 cites·14 claims
- 1383US7735396B2Wave gear drive having negative deflection meshing tooth profileHARMONIC DRIVE SYSTEMS·Filed 2004·Granted Jun 15, 2010·23 cites·12 claims
- 1482US9416861B2Strain wave gearing with involute positive deflection tooth profile taking rim thickness into considerationISHIKAWA SHOICHI·Filed 2012·Granted Aug 16, 2016·6 cites·6 claims
- 1582US6467375B1Flexible meshing type gear device having deflection meshing involute tooth profileHARMONIC DRIVE SYSTEMS·Filed 2000·Granted Oct 22, 2002·22 cites·5 claims
- 1681US9057421B2Wave gear device having three-dimensional contacting involute positive deflection tooth profileISHIKAWA SHOICHI·Filed 2011·Granted Jun 16, 2015·7 cites·4 claims
- 1781US8661940B2Wave gear device having three-dimensional continuous contact tooth profileISHIKAWA SHOICHI·Filed 2011·Granted Mar 4, 2014·7 cites·2 claims
- 1878US8542214B2Image display deviceNAKAI JUN·Filed 2010·Granted Sep 24, 2013·9 cites·7 claims
- 1978US6167783B1Flexible meshing type gearing having three-dimensional, non-interactive wide-area intermeshing tooth profileHARMONIC DRIVE SYSTEMS·Filed 1998·Granted Jan 2, 2001·41 cites·2 claims
- 2076US10883589B2Two stress-separation strain wave gearingHARMONIC DRIVE SYSTEMS·Filed 2015·Granted Jan 5, 2021·2 cites·6 claims
- 2176US4031770ADual tooth contact type W-N gearHASEGAWA HAGURUMA KK·Filed 1976·Granted Jun 28, 1977·25 cites·2 claims
- 2275US10871213B2Strain wave gearing with compound meshing that involves congruity of tooth surfacesHARMONIC DRIVE SYSTEMS·Filed 2015·Granted Dec 22, 2020·2 cites·5 claims
- 2375US8776638B2Wave gear device having three-dimensionally contactable shifted tooth profileISHIKAWA SHOICHI·Filed 2008·Granted Jul 15, 2014·7 cites·2 claims
- 2475US8555505B2Maximum meshable tooth profile having non-positive deflection in flat wave gear deviceISHIKAWA SHOICHI·Filed 2010·Granted Oct 15, 2013·4 cites·4 claims
- 2574US7328632B2Wave gear drive having widely engaging tooth profileHARMONIC DRIVE SYSTEMS·Filed 2004·Granted Feb 12, 2008·17 cites·12 claims
- 2672US9903459B2Strain wave gearing having continuous-contact tooth profile formed using arcuate tooth profileHARMONIC DRIVE SYSTEMS·Filed 2014·Granted Feb 27, 2018·3 cites·10 claims
- 2772US5918508AStrain wave gearing having a non-interfering wide mesh range tooth profileHARMONIC DRIVE SYSTEMS·Filed 1996·Granted Jul 6, 1999·45 cites·9 claims
- 2871US6799489B2Wave gearing with three-dimensional deviatedly meshed tooth profileHARMONIC DRIVE SYSTEMS·Filed 2002·Granted Oct 5, 2004·15 cites·3 claims
- 2970US5458023AFlexing contact type gear drive of non-profile-shifted two-circular-arc composite tooth profileHARMONIC DRIVE SYSTEMS·Filed 1992·Granted Oct 17, 1995·28 cites·2 claims
- 3069US8661939B2Wave gear device having compound tooth profile of positive deflection meshingISHIKAWA SHOICHI·Filed 2008·Granted Mar 4, 2014·5 cites·6 claims
- 3169US7607924B2Electronic control unit and method of manufacturing the sameADVICS CO LTD·Filed 2008·Granted Oct 27, 2009·4 cites·14 claims
- 3269US5687620AFlexible meshing type gear device with a passing tooth profileHARMONIC DRIVE SYSTEMS·Filed 1995·Granted Nov 18, 1997·29 cites·3 claims
- 3366US7117759B2Wave gear drive with wide mesh three-dimensional tooth profileHARMONIC DRIVE SYSTEMS·Filed 2004·Granted Oct 10, 2006·11 cites·2 claims
- 3465US12226841B2Reciprocating cutting toolMAKITA CORP·Filed 2022·Granted Feb 18, 2025·0 cites·16 claims
- 3565US11489099B2Light-emitting deviceNICHIA CORP·Filed 2021·Granted Nov 1, 2022·0 cites·20 claims
- 3665US9746065B2Strain wave gearing having double-contact negative deflection tooth profileHARMONIC DRIVE SYSTEMS·Filed 2013·Granted Aug 29, 2017·2 cites·4 claims
- 3764US8910545B2Wave gear device provided with tapered flexible externally toothed gearISHIKAWA SHOICHI·Filed 2012·Granted Dec 16, 2014·2 cites·3 claims
- 3864US2025308469A1Dimming device and display devicePANASONIC AUTOMOTIVE SYSTEMS CO LTD·Filed 2025·Application pending·0 cites
- 3963US10944035B2Resin package and light-emitting deviceNICHIA CORP·Filed 2020·Granted Mar 9, 2021·0 cites·20 claims
- 4060US7530292B2Wave gear drive having high ratcheting torque tooth profileHARMONIC DRIVE SYSTEMS·Filed 2004·Granted May 12, 2009·8 cites·10 claims
- 4160US5485766ATertiary negative-deviation flexing contact type gear drive of non-profile-shifted tooth profileHARMONIC DRIVE SYSTEMS·Filed 1992·Granted Jan 23, 1996·20 cites·3 claims
- 4259US10174825B2Passing-type-meshing negative-deflection strain wave gearingHARMONIC DRIVE SYSTEMS·Filed 2014·Granted Jan 8, 2019·1 cites·4 claims
- 4359US2018174773A1Electric toolMAKITA CORP·Filed 2018·Application pending·0 cites
- 4458US10586905B2Resin package and light-emitting deviceNICHIA CORP·Filed 2018·Granted Mar 10, 2020·0 cites·7 claims
- 4550US11285598B2Work stand for power tool and bracket thereforMAKITA CORP·Filed 2020·Granted Mar 29, 2022·0 cites·20 claims
- 4650US2009139357A1Method For Setting Nonpositive Deflection, Maximum Meshable Tooth Profile In Flat Wave Gear DeviceHARMONIC DRIVE SYSTEMS·Filed 2008·Application pending·0 cites
- 4742US9052004B2Wave gear device having three-dimensional-contact tooth profileISHIKAWA SHOICHI·Filed 2012·Granted Jun 9, 2015·0 cites·10 claims
- 4841US2005177576A1File management method, system, and programFiled 2003·Application pending·0 cites
- 4937US8570290B2Image display deviceNAKAI JUN·Filed 2010·Granted Oct 29, 2013·0 cites·4 claims
- 5034US4121482AW-N gear having a maximum surface strengthHASEGAWA HAGURUMA KK·Filed 1977·Granted Oct 24, 1978·7 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →