Inventor · disambiguated record
Yasushi Hasegawa
Also filed as: HASEGAWA YASUSHI
67 granted patents·24 pending applications·764 citations·filing 1987–2025
99Inventor score
Files withMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD27NIPPON STEEL CORP19HASEGAWA YASUSHI8SHARP KK6MITSUBISHI HEAVY IND LTD5
Top patents by PatentIndex Score
91 records- 0195US6169854B1Display device connectable to a cameraMINOLTA CO LTD·Filed 1999·Granted Jan 2, 2001·112 cites·9 claims
- 0293US5650024AMartensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the sameNIPPON STEEL CORP·Filed 1994·Granted Jul 22, 1997·43 cites·6 claims
- 0388US6679971B2Front plate for plasma display panels, and method of producing the sameNISSHIN SPINNING·Filed 2001·Granted Jan 20, 2004·32 cites·16 claims
- 0488US6513038B1Scheme for accessing data management directoryNIPPON TELEGRAPH & TELEPHONE·Filed 1999·Granted Jan 28, 2003·129 cites·36 claims
- 0586US6686536B2Method of forming electrode section on inner surface of transparent electromagnetic wave shielding plate, and transparent electromagnetic wave shielding plate formed therebyNISSHIN SPINNING·Filed 2001·Granted Feb 3, 2004·41 cites·5 claims
- 0684US9291378B2Simplified refrigeration leak detection structure for a turbo chillerMITSUBISHI HEAVY IND LTD·Filed 2012·Granted Mar 22, 2016·5 cites·12 claims
- 0783US11167369B2Method of manufacturing welded structure of ferritic heat-resistant steel and welded structure of ferritic heat-resistant steelNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Nov 9, 2021·1 cites·6 claims
- 0883US8794215B2Method of producing common rail and common railHIRANO KOJI·Filed 2010·Granted Aug 5, 2014·3 cites·12 claims
- 0983US8715432B2Fire-resistant steel superior in weld joint reheat embrittlement resistance and toughness and method of production of sameHASEGAWA YASUSHI·Filed 2009·Granted May 6, 2014·5 cites·6 claims
- 1083US8097096B2Fire resistant steel excellent in high temperature strength, toughness, and reheating embrittlement resistance and process for production of the sameYOSHIDA SUGURU·Filed 2007·Granted Jan 17, 2012·6 cites·12 claims
- 1180US10254014B2Centrifugal chillerMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2015·Granted Apr 9, 2019·2 cites·4 claims
- 1280US5772956AHigh strength, ferritic heat-resistant steel having improved resistance to intermetallic compound precipitation-induced embrittlementNIPPON STEEL CORP·Filed 1996·Granted Jun 30, 1998·34 cites·4 claims
- 1379US5919577AFe-based alloy foil for liquid-phase diffusion bonding of Fe-based materials by enabling bonding in oxidizing atmospheresNIPPON STEEL CORP·Filed 1997·Granted Jul 6, 1999·28 cites·24 claims
- 1478US11060156B2Method of manufacturing welded structure of ferritic heat-resistant steel and welded structure of ferritic heat-resistant steelNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Jul 13, 2021·1 cites·6 claims
- 1578US9464611B2Method of producing common rail and locally reinforced common railSUGIHASHI ATSUSHI·Filed 2013·Granted Oct 11, 2016·2 cites·1 claims
- 1677US6866725B2Steel pipe excellent in formability and method of producing the sameNIPPON STEEL CORP·Filed 2001·Granted Mar 15, 2005·10 cites·34 claims
- 1776US11391495B2Turbo refrigerator and startup control method thereforMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2018·Granted Jul 19, 2022·1 cites·10 claims
- 1876US10858951B2Turbo compressor and turbo chiller using sameMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2014·Granted Dec 8, 2020·4 cites·14 claims
- 1976US9951783B2Centrifugal compressorMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Apr 24, 2018·4 cites·5 claims
- 2076US6507035B1Photocoupler device, method for fabricating the same, and lead frame for photocoupler deviceSHARP KK·Filed 2000·Granted Jan 14, 2003·26 cites·11 claims
- 2176US2025189183A1Turbo chillerMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2025·Application pending·0 cites
- 2275US7900603B2Automobile-use high pressure fuel injection accumulator-distributor and method of production of the sameNIPPON STEEL CORP·Filed 2006·Granted Mar 8, 2011·8 cites·16 claims
- 2374US8698004B2Multi-piece board and fabrication method thereofHASEGAWA YASUSHI·Filed 2009·Granted Apr 15, 2014·4 cites·20 claims
- 2473US9055668B2Method of fabricating a multi-piece boardHASEGAWA YASUSHI·Filed 2011·Granted Jun 9, 2015·2 cites·20 claims
- 2573US6363375B1Classification tree based information retrieval schemeNIPPON TELEGRAPH & TELEPHONE·Filed 1999·Granted Mar 26, 2002·49 cites·48 claims
- 2673US5701518AWaterproof cameraMINOLTA CO LTD·Filed 1996·Granted Dec 23, 1997·12 cites·23 claims
- 2772US8572839B2Fabrication method for multi-piece boardHASEGAWA YASUSHI·Filed 2009·Granted Nov 5, 2013·4 cites·18 claims
- 2872US8354613B2Method of producing common rail and locally reinforced common railNIPPON STEEL CORP·Filed 2008·Granted Jan 15, 2013·5 cites·11 claims
- 2972US8259467B2Multi-piece board and fabrication method thereforHASEGAWA YASUSHI·Filed 2009·Granted Sep 4, 2012·4 cites·15 claims
- 3067US10174986B2Heat source machine and control method thereforMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2014·Granted Jan 8, 2019·1 cites·4 claims
- 3167US8955887B2Liquid phase diffusion bonded pipe jointTSURU EIJI·Filed 2009·Granted Feb 17, 2015·2 cites·9 claims
- 3267US8882936B2High-tensile steel with excellent weldability and toughness and with tensile strength of 550 MPa class or more and method of production of the sameHASEGAWA YASUSHI·Filed 2005·Granted Nov 11, 2014·2 cites·5 claims
- 3367US7412841B2Turbo chiller, compressor therefor, and control method thereforMITSUBISHI HEAVY IND LTD·Filed 2004·Granted Aug 19, 2008·15 cites·4 claims
- 3467US6162307ABN-precipitation-strengthened low-carbon-ferritic heat-resistant steel excellent in weldabilityNIPPON STEEL CORP·Filed 1999·Granted Dec 19, 2000·15 cites·4 claims
- 3565US8079014B2Software development apparatus and methodWATANABE MANABU·Filed 2007·Granted Dec 13, 2011·5 cites·7 claims
- 3665US6264761B1Alloy foil for liquid-phase diffusion bonding bondable in oxidizing atmosphereFiled 1997·Granted Jul 24, 2001·23 cites·24 claims
- 3765US5766376AHigh-strength ferritic heat-resistant steel and method of producing the sameNIPPON STEEL CORP·Filed 1995·Granted Jun 16, 1998·18 cites·4 claims
- 3864US10724773B2Turbo freezing machine and start-up control method thereforMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2017·Granted Jul 28, 2020·1 cites·4 claims
- 3963US7975261B2Task transition chart display method and display apparatusFUJITSU SEMICONDUCTOR LTD·Filed 2007·Granted Jul 5, 2011·3 cites·10 claims
- 4062US10938289B2ActuatorNIDEC SANKYO CORP·Filed 2019·Granted Mar 2, 2021·0 cites·19 claims
- 4162US8447452B2Vehicle-use electricity management system, vehicle-use electricity information management apparatus and vehicle-use electrical loadKATOH KUNIO·Filed 2011·Granted May 21, 2013·5 cites·17 claims
- 4261US11994325B2Control device, refrigerator, control method, and abnormality detection methodMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2019·Granted May 28, 2024·0 cites·20 claims
- 4361US6737680B2Method and apparatus for fabricating a photocoupler with reduced mount areaSHARP KK·Filed 2002·Granted May 18, 2004·7 cites·12 claims
- 4460US11774146B2Turbo compressor and centrifugal chiller comprising sameMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2019·Granted Oct 3, 2023·0 cites·7 claims
- 4559US6577820B2CameraMINOLTA CO LTD·Filed 2001·Granted Jun 10, 2003·5 cites·30 claims
- 4658US6913842B2Liquid phase diffusion welded metal-made precision machine component and production method thereofFUKUJU INDUSTRY CORP LTD·Filed 2001·Granted Jul 5, 2005·4 cites·2 claims
- 4757US8378237B2Multi-piece board and fabrication method thereforIBIDEN CO LTD·Filed 2009·Granted Feb 19, 2013·0 cites·20 claims
- 4855US2011002808A1Fire-resistant steel material superior in weld heat affected zone reheat embrittlement resistance and low temperature toughness and method of production of sameMIZOGUCHI MASAKI·Filed 2009·Application pending·0 cites
- 4954US10126028B2Turbo chillerMITSUBISHI HEAVY IND THERMAL SYSTEMS LTD·Filed 2015·Granted Nov 13, 2018·0 cites·5 claims
- 5054US8323561B2Fire-resistant steel material superior in HAZ toughness of welded joint and method of production of sameHASEGAWA YASUSHI·Filed 2007·Granted Dec 4, 2012·0 cites·7 claims
Showing the top 50 of 91 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yasushi 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 →