Inventor · disambiguated record
Takeshi Kawasaki
Also filed as: KAWASAKI TAKESHI
96 granted patents·30 pending applications·1,915 citations·filing 1984–2025
99Inventor score
Files withFUJITSU LTD27HITACHI LTD26SUMITOMO ELECTRIC INDUSTRIES18HITACHI HIGH TECH CORP15KAWASAKI TAKESHI6
Top patents by PatentIndex Score
126 records- 0198US6193137B1Constructive body and friction stir welding methodHITACHI LTD·Filed 1998·Granted Feb 27, 2001·145 cites·11 claims
- 0297US6494011B2Hollow extruded frame member for friction stir weldingHITACHI LTD·Filed 2001·Granted Dec 17, 2002·33 cites·28 claims
- 0396US7223983B2Charged particle beam columnHITACHI HIGH TECH CORP·Filed 2005·Granted May 29, 2007·35 cites·11 claims
- 0494US7592647B2Semiconductor device and manufacturing method thereofEUDYNA DEVICES INC·Filed 2006·Granted Sep 22, 2009·32 cites·8 claims
- 0594US7521675B2Charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2006·Granted Apr 21, 2009·20 cites·10 claims
- 0693US11274627B2Spark ignition engineKUBOTA KK·Filed 2020·Granted Mar 15, 2022·2 cites·20 claims
- 0793US6250037B1Structure body and hollow shape extruded frame memberHITACHI LTD·Filed 1999·Granted Jun 26, 2001·77 cites·13 claims
- 0893US5144156APhase synchronizing circuit with feedback to control charge pumpSEIKO EPSON CORP·Filed 1991·Granted Sep 1, 1992·89 cites·9 claims
- 0991US7107348B2Packet relay processing apparatusFUJITSU LTD·Filed 2002·Granted Sep 12, 2006·91 cites·15 claims
- 1090US7504624B2Charged particle beam deviceHITACHI HIGH TECH CORP·Filed 2006·Granted Mar 17, 2009·13 cites·20 claims
- 1190US7249654B2Heat insulating acoustical structure and carbody shell structure using the sameHITACHI LTD·Filed 2006·Granted Jul 31, 2007·14 cites·8 claims
- 1289US11280233B2Ventilator-equipped engineKUBOTA KK·Filed 2020·Granted Mar 22, 2022·2 cites·11 claims
- 1389US6671257B1Feedback control method and device in ATM switching systemFUJITSU LTD·Filed 2000·Granted Dec 30, 2003·36 cites·18 claims
- 1489US6413610B1Structure body and a manufacturing method of a structure bodyHITACHI LTD·Filed 2000·Granted Jul 2, 2002·43 cites·21 claims
- 1589US6378264B1Structure body and method of manufacture thereofHITACHI LTD·Filed 2000·Granted Apr 30, 2002·42 cites·30 claims
- 1689US6276591B1Friction stir joining methodHITACHI LTD·Filed 2000·Granted Aug 21, 2001·38 cites·2 claims
- 1788US7714286B2Charged particle beam apparatus, aberration correction value calculation unit therefor, and aberration correction program thereforHITACHI HIGH TECH CORP·Filed 2008·Granted May 11, 2010·11 cites·13 claims
- 1888US6527470B2Structural body and friction stir welding methodHITACHI LTD·Filed 2001·Granted Mar 4, 2003·29 cites·10 claims
- 1987US7825377B2Electron beam apparatus with aberration correctorHITACHI HIGH TECH CORP·Filed 2008·Granted Nov 2, 2010·6 cites·12 claims
- 2087US6321975B1Manufacturing method of a structure bodyHITACHI LTD·Filed 2000·Granted Nov 27, 2001·36 cites·19 claims
- 2186US6290117B1Friction stir welding method and friction stir welding apparatusHITACHI LTD·Filed 1999·Granted Sep 18, 2001·57 cites·6 claims
- 2285US7531799B2Charged particle beam columnHITACHI HIGH TECH CORP·Filed 2007·Granted May 12, 2009·7 cites·20 claims
- 2385US7521707B2Semiconductor device having GaN-based semiconductor layerEUDYNA DEVICES INC·Filed 2006·Granted Apr 21, 2009·12 cites·4 claims
- 2484US10476436B2Resonant unit, voltage controlled oscillator (VCO) implementing the same, and push-push oscillator implementing a pair of VCOsSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Nov 12, 2019·3 cites·16 claims
- 2584US6599641B1Structural body formed by friction stir welding of hollow extruded frame membersHITACHI LTD·Filed 2000·Granted Jul 29, 2003·31 cites·10 claims
- 2683US8129680B2Charged particle beam apparatus including aberration correctorHIROSE KOTOKO·Filed 2009·Granted Mar 6, 2012·7 cites·12 claims
- 2783US7872240B2Corrector for charged-particle beam aberration and charged-particle beam apparatusHITACHI HIGH TECH CORP·Filed 2008·Granted Jan 18, 2011·7 cites·11 claims
- 2883US7834326B2Aberration corrector and charged particle beam apparatus using the sameHITACHI HIGH TECH CORP·Filed 2008·Granted Nov 16, 2010·7 cites·16 claims
- 2983US6965566B2Packet flow control apparatus and a method for controlling the sameFUJITSU LTD·Filed 2001·Granted Nov 15, 2005·42 cites·15 claims
- 3083US5285483APhase synchronization circuitSEIKO EPSON CORP·Filed 1992·Granted Feb 8, 1994·41 cites·7 claims
- 3183US4671564AVentilating device for a roof opening of vehiclesWEBASTO WERK BAIER KG W·Filed 1984·Granted Jun 9, 1987·44 cites·22 claims
- 3282US9837243B2Ion pump and charged particle beam device using the sameHITACHI LTD·Filed 2016·Granted Dec 5, 2017·3 cites·13 claims
- 3382US8044433B2GaN-based high electron mobility transistor (HEMT) with an embedded gate electrode having a first recess portion and a second recess portion to improve drain breakdown voltageEUDYNA DEVICES INC·Filed 2006·Granted Oct 25, 2011·10 cites·13 claims
- 3482US7718976B2Charged particle beam apparatusHITACHI HIGH TECH CORP·Filed 2007·Granted May 18, 2010·6 cites·14 claims
- 3582US7375323B2Electron beam apparatus with aberration correctorHITACHI HIGH TECH CORP·Filed 2007·Granted May 20, 2008·4 cites·12 claims
- 3682US7199365B2Electron beam apparatus with aberration correctorHITACHI HIGH TECH CORP·Filed 2005·Granted Apr 3, 2007·4 cites·18 claims
- 3781US7915582B2Method for estimation of probe shape in charged particle beam instrumentsHITACHI HIGH TECH CORP·Filed 2007·Granted Mar 29, 2011·5 cites·12 claims
- 3881US7723751B2Semiconductor device and fabrication method of the sameEUDYNA DEVICES INC·Filed 2006·Granted May 25, 2010·9 cites·2 claims
- 3981US7211804B2Chromatic aberration corrector for charged particles and charged-particle optical apparatus using the correctorHITACHI HIGH TECH CORP·Filed 2004·Granted May 1, 2007·16 cites·13 claims
- 4081US6461072B2Structure body for use in friction stir weldingHITACHI LTD·Filed 2001·Granted Oct 8, 2002·20 cites·7 claims
- 4180US6582832B2Hollow-shaped materialHITACHI LTD·Filed 2001·Granted Jun 24, 2003·23 cites·2 claims
- 4279US8729970B2Oscillator circuitKAWASAKI TAKESHI·Filed 2012·Granted May 20, 2014·4 cites·11 claims
- 4379US8168951B2Charged particle beam apparatusKAWASAKI TAKESHI·Filed 2009·Granted May 1, 2012·4 cites·6 claims
- 4479US6532712B2Structural body and method of manufacture thereofHITACHI LTD·Filed 2002·Granted Mar 18, 2003·19 cites·13 claims
- 4579US6386425B2Method of friction stir welding structural body, structural body, and extruded materialHITACHI LTD·Filed 2001·Granted May 14, 2002·21 cites·6 claims
- 4679US5818818ACommunication service quality control systemFUJITSU LTD·Filed 1996·Granted Oct 6, 1998·108 cites·29 claims
- 4778US6982427B2Electron beam apparatus with aberration correctorHITACHI HIGH TECH CORP·Filed 2004·Granted Jan 3, 2006·18 cites·8 claims
- 4878US6691484B2Hollow extruded frame member for friction stir welding and structure body formed therefromHITACHI LTD·Filed 2002·Granted Feb 17, 2004·16 cites·10 claims
- 4978US5319320APhase-locked loop having frequency and phase control current pumpsSEIKO EPSON CORP·Filed 1992·Granted Jun 7, 1994·26 cites·14 claims
- 5077US5021749ASwitchable capacitor loop filter for phase locked loopSEIKO EPSON CORP·Filed 1989·Granted Jun 4, 1991·30 cites·12 claims
Showing the top 50 of 126 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →