Inventor · disambiguated record
Koichi Sekiguchi
Also filed as: SEKIGUCHI KOICHI
34 granted patents·2 pending applications·894 citations·filing 1974–2018
98Inventor score
Top patents by PatentIndex Score
36 records- 0198US7354259B2Scroll compressor having a valved back pressure chamber and a bypass for overcompressionHITACHI LTD·Filed 2005·Granted Apr 8, 2008·67 cites·3 claims
- 0298US7118358B2Scroll compressor having a back-pressure chamber control valveHITACHI LTD·Filed 2005·Granted Oct 10, 2006·76 cites·1 claims
- 0398US6589035B1Scroll compressor having a valved back-pressure chamber and a bypass for over-compressionHITACHI LTD·Filed 1997·Granted Jul 8, 2003·95 cites·14 claims
- 0497US7137796B2Scroll compressorHITACHI LTD·Filed 2004·Granted Nov 21, 2006·71 cites·4 claims
- 0597US6769888B2Scroll compressor having a valved back pressure chamber and a bypass for overcompressionHITACHI LTD·Filed 2003·Granted Aug 3, 2004·69 cites·3 claims
- 0685US5230616ARotary compressor with shaft balancersHITACHI LTD·Filed 1989·Granted Jul 27, 1993·51 cites·2 claims
- 0785US4104981AIndicator using changeable path through transparent materialNISSAN MOTOR·Filed 1976·Granted Aug 8, 1978·24 cites·5 claims
- 0883US5580233ACompressor with self-aligning rotational bearingHITACHI LTD·Filed 1995·Granted Dec 3, 1996·46 cites·17 claims
- 0978US6301912B1Heat pump apparatusHITACHI LTD·Filed 1999·Granted Oct 16, 2001·30 cites·12 claims
- 1077US5379424ADistributed database management system for retrieving data files from databases selected based upon retrieval timeTOSHIBA KK·Filed 1993·Granted Jan 3, 1995·83 cites·5 claims
- 1170US5291594ACommit processing system which provides a list of sites to each site to allow for direct communication between participation sites and the transaction generation siteTOSHIBA KK·Filed 1991·Granted Mar 1, 1994·36 cites·9 claims
- 1269US5293627AMethod for adjusting curent clock counts in a distributed computer systemTOSHIBA KK·Filed 1991·Granted Mar 8, 1994·38 cites·18 claims
- 1365US5030073ARotary compressorHITACHI LTD·Filed 1990·Granted Jul 9, 1991·23 cites·8 claims
- 1464US6261072B1Scroll compressorHITACHI LTD·Filed 1998·Granted Jul 17, 2001·22 cites·12 claims
- 1564US6075080AFlux compositionFUJITSU TEN LTD·Filed 1998·Granted Jun 13, 2000·23 cites·8 claims
- 1660US6637550B2Displacement type fluid machineHITACHI LTD·Filed 2001·Granted Oct 28, 2003·10 cites·18 claims
- 1759US6494696B2Scroll compressorHITACHI LTD·Filed 2001·Granted Dec 17, 2002·7 cites·5 claims
- 1859US6231317B1Sealed compressor driven by a motorHITACHI LTD·Filed 1999·Granted May 15, 2001·14 cites·13 claims
- 1957US5090882ARotary fluid machine having hollow vanes and refrigeration apparatus incorporating the rotary fluid machineHITACHI LTD·Filed 1990·Granted Feb 25, 1992·18 cites·11 claims
- 2055US6203290B1Closed-typed electrically-driven compressorHITACHI LTD·Filed 1998·Granted Mar 20, 2001·17 cites·3 claims
- 2152US8984971B2Parallel slider device with a pneumatic linear guide, control method therefor and measuring device using sameNAOI KAORU·Filed 2010·Granted Mar 24, 2015·1 cites·11 claims
- 2252US5104297ARotary compressor having an eccentric pin with reduced axial dimensionHITACHI LTD·Filed 1990·Granted Apr 14, 1992·14 cites·4 claims
- 2352US2010107880A1Hollow fiber membrane dehumidifierTOSHIBA KK·Filed 2009·Application pending·0 cites
- 2451US3971898AVisual indicating control circuit in key telephone systemIWATSU ELECTRIC CO LTD·Filed 1975·Granted Jul 27, 1976·7 cites·8 claims
- 2550US4314109ASynchronization system for key telephone systemIWATSU ELECTRIC CO LTD·Filed 1980·Granted Feb 2, 1982·8 cites·1 claims
- 2648US5730588AScroll compressor having a fixed scroll plate with grooveHITACHI LTD·Filed 1996·Granted Mar 24, 1998·10 cites·2 claims
- 2748US4551583AControl signal transmission system for key telephone systemTELEGRAPH & TELEPHONE PUB CORP·Filed 1984·Granted Nov 5, 1985·10 cites·5 claims
- 2846US11447626B2Resin composition for reinforcement and electronic component deviceKOKI KK·Filed 2018·Granted Sep 20, 2022·0 cites·17 claims
- 2945US4280022AKey telephone systemsIWATSU ELECTRIC CO LTD·Filed 1979·Granted Jul 21, 1981·6 cites·20 claims
- 3041US6079963ADisplacement type compressor and method of forming coating filmHITACHI LTD·Filed 1997·Granted Jun 27, 2000·6 cites·5 claims
- 3137US2003164352A1Displacement type compressor and method of forming coating filmFiled 2003·Application pending·0 cites
- 3235US4726016AConference systemIWATSU ELECTRIC CO LTD·Filed 1985·Granted Feb 16, 1988·5 cites·1 claims
- 3335US4175216AIntercom calling apparatus in a key telephone systemIWATSU ELECTRIC CO LTD·Filed 1978·Granted Nov 20, 1979·3 cites·3 claims
- 3435US3973083ARotary dial device for a telephone setIWATSU ELECTRIC CO LTD·Filed 1974·Granted Aug 3, 1976·2 cites·4 claims
- 3529US6358028B1Scroll compressorHITACHI LTD·Filed 1999·Granted Mar 19, 2002·2 cites·5 claims
- 3620USD658685SProfilometerSEKIGUCHI KOICHI·Filed 2010·Granted May 1, 2012·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →