Inventor · disambiguated record
Kazuhiko Hata
Also filed as: HATA KAZUHIKO · NAKAI KIYOSHI
26 granted patents·4 pending applications·571 citations·filing 1974–2025
96Inventor score
Files withNIPPON SUISAN KAISHA LTD13SUMITOMO CHEMICAL CO8FUJITSU LTD7DOISAKI NOBUSHIGE1HATA KAZUHIKO1
Top patents by PatentIndex Score
30 records- 0198US5840944AMethod to produce highly pure eicosapentaenoic acid or its esterNIPPON SUISAN KAISHA LTD·Filed 1992·Granted Nov 24, 1998·198 cites·5 claims
- 0296US5215630AMethod of purifying eicosapentaenoic acid or the ester derivative thereof by fractional distillationNIPPON SUISAN KAISHA LTD·Filed 1991·Granted Jun 1, 1993·170 cites·15 claims
- 0392US4780556AMethod for producing chlorosilanesSUMITOMO CHEMICAL CO·Filed 1988·Granted Oct 25, 1988·60 cites·6 claims
- 0486US12331015B2Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2023·Granted Jun 17, 2025·0 cites·14 claims
- 0586US6905850B2Process for the production of glycerides with lipasesNIPPON SUISAN KAISHA LTD·Filed 2001·Granted Jun 14, 2005·20 cites·8 claims
- 0682US9540306B2Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2013·Granted Jan 10, 2017·4 cites·14 claims
- 0782US2025243146A1Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2025·Application pending·0 cites
- 0880US4000958AMethod for treating leatherSUMITOMO CHEMICAL CO·Filed 1975·Granted Jan 4, 1977·20 cites·48 claims
- 0978US11603347B2Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2021·Granted Mar 14, 2023·0 cites·4 claims
- 1077US11034643B2Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2019·Granted Jun 15, 2021·0 cites·4 claims
- 1176US4035559ANovel aromatic polyvinyl compoundsSUMITOMO CHEMICAL CO·Filed 1976·Granted Jul 12, 1977·17 cites·28 claims
- 1267US10399923B2Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2018·Granted Sep 3, 2019·0 cites·4 claims
- 1365US9032257B2Transmission apparatus and transmission apparatus control methodFUJITSU LTD·Filed 2012·Granted May 12, 2015·2 cites·7 claims
- 1465US3964955ABonding method using olefin-acrylic ester copolymerSUMITOMO CHEMICAL CO·Filed 1974·Granted Jun 22, 1976·11 cites·19 claims
- 1562US10399922B2Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing sameNIPPON SUISAN KAISHA LTD·Filed 2016·Granted Sep 3, 2019·0 cites·9 claims
- 1660US9029584B2Method for producing oil containing highly unsaturated fatty acid using lipaseDOISAKI NOBUSHIGE·Filed 2012·Granted May 12, 2015·1 cites·19 claims
- 1757US6014414ASynchronization-message-based active reference switching unitFUJITSU LTD·Filed 1997·Granted Jan 11, 2000·21 cites·11 claims
- 1856US7651720B2EPA and/or DHA-containing acidic milksNIPPON SUISAN KAISHA LTD·Filed 2001·Granted Jan 26, 2010·1 cites·9 claims
- 1954US5955959ASynchronization message transmitting apparatusFUJITSU LTD·Filed 1997·Granted Sep 21, 1999·19 cites·33 claims
- 2049US8399694B2Process for producing highly purified orange roughy oilHATA KAZUHIKO·Filed 2008·Granted Mar 19, 2013·0 cites·9 claims
- 2149US2010165852A1Node apparatus and method for performing a loopback-test on a communication path in a networkFUJITSU LTD·Filed 2009·Application pending·0 cites
- 2243US4260831AOligomerization of m-isopropenylphenolSUMITOMO CHEMICAL CO·Filed 1979·Granted Apr 7, 1981·4 cites·5 claims
- 2342US2003162834A1Natural physiologically active material effective on fish diseases and fish food containing the materialNIPPON SUISAN KAISHA LTD·Filed 2003·Application pending·0 cites
- 2440US4337367AOligomer of m-isopropenylphenolSUMITOMO CHEMICAL CO·Filed 1979·Granted Jun 29, 1982·3 cites·8 claims
- 2540US2001015979A1Ring transmission system and method of controlling squelch in ring transmission systemFUJITSU LTD·Filed 2000·Application pending·0 cites
- 2636US6222892B1Synchronization message reception processing apparatusFUJITSU LTD·Filed 1997·Granted Apr 24, 2001·6 cites·17 claims
- 2736US4211715AEpoxy resins and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1978·Granted Jul 8, 1980·2 cites·2 claims
- 2835US5418938AData management system having CPUs to each other via dual-port memoryFUJITSU LTD·Filed 1992·Granted May 23, 1995·11 cites·18 claims
- 2931US4408086AOligomerization of m-isopropenylphenolSUMITOMO CHEMICAL CO·Filed 1980·Granted Oct 4, 1983·1 cites·4 claims
- 3029US6737460B2Vinyl monomers having polyenic side chains derived from highly unsaturated fatty acids and derivatives thereof, and polymers of said monomersNIPPON SUISAN KAISHA LTD·Filed 1997·Granted May 18, 2004·0 cites·30 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →