Inventor · disambiguated record
Masahiko Hasegawa
Also filed as: HASEGAWA MASAHIKO
22 granted patents·1 pending application·296 citations·filing 1986–2023
95Inventor score
Top patents by PatentIndex Score
23 records- 0191US5614110AVarying protective gas composition between piercing and cutting with plasma torchKOMATSU MFG CO LTD·Filed 1994·Granted Mar 25, 1997·67 cites·15 claims
- 0281US5801355APlasma piercing with non-oxidative plasma gas and plasma cutting with oxidative plasma gasKOMATSU MFG CO LTD·Filed 1995·Granted Sep 1, 1998·49 cites·17 claims
- 0380US6592430B1High-precision machining systemMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Jul 15, 2003·20 cites·26 claims
- 0479US8212176B2Machining head, nozzle changer and laser beam machining apparatusAKIYAMA TAKASHI·Filed 2007·Granted Jul 3, 2012·11 cites·13 claims
- 0579US5326955AStandoff control method and apparatus for plasma cutting machineKOMATSU MFG CO LTD·Filed 1991·Granted Jul 5, 1994·43 cites·13 claims
- 0675US11274672B2Rotation driving device, method for mounting rotation driving device, axial blower, method for mounting axial blower, and laser oscillatorMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Mar 15, 2022·2 cites·11 claims
- 0774US9804038B2Power damper, laser power meter, laser power measurement method, and laser power monitoring systemMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Oct 31, 2017·3 cites·9 claims
- 0874US6797917B1Laser machining headMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Sep 28, 2004·22 cites·4 claims
- 0967US7608354B2Fuel cell system and control method of sameTOYOTA MOTOR CO LTD·Filed 2005·Granted Oct 27, 2009·1 cites·19 claims
- 1067US6663247B1Reflecting mirror unitMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Dec 16, 2003·12 cites·3 claims
- 1166US8158298B2Fuel cell systemHASEGAWA MASAHIKO·Filed 2006·Granted Apr 17, 2012·2 cites·15 claims
- 1265US5193267AMethod of manufacturing magnetostriction stress detectorsMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Mar 16, 1993·24 cites·7 claims
- 1361US7809033B2Laser oscillatorMITSUBISHI ELECTRIC CORP·Filed 2008·Granted Oct 5, 2010·2 cites·6 claims
- 1455US11833609B2Attaching and detaching apparatus, machining device, and machining headMITSUBISHI ELECTRIC CORP·Filed 2019·Granted Dec 5, 2023·0 cites·20 claims
- 1554US5142919AMagnetostriction type stress detectorMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Sep 1, 1992·17 cites·6 claims
- 1651US7052370B2High-precision machining systemMITSUBISHI ELECTRIC CORP·Filed 2003·Granted May 30, 2006·3 cites·2 claims
- 1751US2023250999A1Exothermic reaction apparatus and method for generating excessive heatTECHNOVA INC·Filed 2023·Application pending·0 cites
- 1844US6318188B1Torque detectorMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Nov 20, 2001·11 cites·18 claims
- 1943US7876804B2Laser oscillatorMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Jan 25, 2011·0 cites·7 claims
- 2038US8416827B2Gas laser oscillatorFUNAOKA KOUJI·Filed 2009·Granted Apr 9, 2013·0 cites·7 claims
- 2135US4677824AOutput control apparatus for Stirling enginesAISIN SEIKI·Filed 1986·Granted Jul 7, 1987·5 cites·2 claims
- 2233US11003519B2Information processing system, cluster system construction method, and non-transitory computer-readable storage medium for storing cluster construction programFUJITSU LTD·Filed 2018·Granted May 11, 2021·0 cites·11 claims
- 2330US4732000AOutput control apparatus for stirling enginesAISIN SEIKI·Filed 1987·Granted Mar 22, 1988·2 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Masahiko Hasegawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →