Inventor · disambiguated record
Hirotsugu Sakata
Also filed as: SAKATA HIROTSUGU
23 granted patents·613 citations·filing 1982–2000
96Inventor score
Top patents by PatentIndex Score
23 records- 0196US4696630AScroll compressor with a thrust reduction mechanismTOSHIBA KK·Filed 1986·Granted Sep 29, 1987·129 cites·19 claims
- 0288US4673339AScroll compressor with suction port in stationary end plateTOSHIBA KK·Filed 1986·Granted Jun 16, 1987·36 cites·11 claims
- 0387US5152682AScroll type fluid machine with passageway for innermost working chamberTOSHIBA KK·Filed 1991·Granted Oct 6, 1992·53 cites·12 claims
- 0485US4558997AScroll compressor with planar surfaces on the internal end portions of the scroll bladesTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Dec 17, 1985·37 cites·7 claims
- 0583US5040952AScroll-type compressorTOSHIBA KK·Filed 1990·Granted Aug 20, 1991·49 cites·14 claims
- 0678US4875839AScroll member for use in a positive displacement device, and a method for manufacturing the sameTOSHIBA KK·Filed 1988·Granted Oct 24, 1989·34 cites·19 claims
- 0776US4442682ATurbine for use in refrigeration cycleTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Apr 17, 1984·37 cites·7 claims
- 0875US5171141AScroll compressor with distal ends of the wraps having sliding contact on curved portionsTOSHIBA KK·Filed 1991·Granted Dec 15, 1992·33 cites·4 claims
- 0975US4426853AAir conditioning systemTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Jan 24, 1984·32 cites·7 claims
- 1074US5080566AFluid scroll machine with projection on one side of Oldham ringTOSHIBA KK·Filed 1990·Granted Jan 14, 1992·34 cites·6 claims
- 1168US4762477AScroll compressor with control of lubricant flowTOSHIBA KK·Filed 1986·Granted Aug 9, 1988·21 cites·21 claims
- 1267US6162035AHelical-blade fluid machineTOSHIBA KK·Filed 1998·Granted Dec 19, 2000·18 cites·17 claims
- 1366US4708607AScroll compressor with lower and higher pressure chambers acting on the orbiting end plateTOSHIBA KK·Filed 1986·Granted Nov 24, 1987·17 cites·7 claims
- 1464US5174737AFluid compressor with spiral bladeTOSHIBA KK·Filed 1991·Granted Dec 29, 1992·21 cites·5 claims
- 1559US5603614AFluid compressing device having coaxial spiral membersTOSHIBA KK·Filed 1995·Granted Feb 18, 1997·15 cites·27 claims
- 1652US5026264AFluid compressorTOSHIBA KK·Filed 1990·Granted Jun 25, 1991·14 cites·4 claims
- 1745US5788470AFluid machine having two spiral working mechanisms with a stepped shape sectionTOSHIBA KK·Filed 1996·Granted Aug 4, 1998·11 cites·16 claims
- 1844US5062778AHelical blade type compressor with thrust loss compensationTOSHIBA KK·Filed 1991·Granted Nov 5, 1991·10 cites·16 claims
- 1943US6186759B1Helical blade type compressor and a refrigeration cycle apparatus using the sameTOSHIBA KK·Filed 1999·Granted Feb 13, 2001·8 cites·31 claims
- 2037US6338617B1Helical-blade fluid machineTOSHIBA KK·Filed 2000·Granted Jan 15, 2002·0 cites·11 claims
- 2132US5927958AFluid machinery having a sealing member between stepped spiralsTOSHIBA KK·Filed 1997·Granted Jul 27, 1999·2 cites·15 claims
- 2230US6471498B1Fluid machinery having stepped spirals with axial pushing means for the moving spiralTOSHIBA KK·Filed 1998·Granted Oct 29, 2002·1 cites·22 claims
- 2328US5350280AFluid compressorTOSHIBA KK·Filed 1992·Granted Sep 27, 1994·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →