Inventor · disambiguated record
Takashi Okawa
Also filed as: OKAWA TAKASHI
83 granted patents·11 pending applications·889 citations·filing 1975–2023
99Inventor score
Files withMITSUBISHI GAS CHEMICAL CO24TOYOTA MOTOR CO LTD14KYOCERA CORP7NAKAYAMA YOSHIKAZU7DENSO CORP5
Top patents by PatentIndex Score
94 records- 0192US6669256B2Nanotweezers and nanomanipulatorNAKAYAMA YOSHIKAZU·Filed 2001·Granted Dec 30, 2003·66 cites·3 claims
- 0292US5903342AInspection method and device of wafer surfaceHITACHI ELECTR ENG·Filed 1996·Granted May 11, 1999·218 cites·16 claims
- 0390US6731384B2Apparatus for detecting foreign particle and defect and the same methodHITACHI LTD·Filed 2001·Granted May 4, 2004·44 cites·18 claims
- 0489US4605796AProcess for producing ethanolAGENCY IND SCIENCE TECHN·Filed 1984·Granted Aug 12, 1986·28 cites·9 claims
- 0588US6805390B2Nanotweezers and nanomanipulatorYOSHIKAZU NAKAYAMA·Filed 2003·Granted Oct 19, 2004·39 cites·4 claims
- 0686US10002863B2Semiconductor device and manufacturing method for the sameTOYOTA MOTOR CO LTD·Filed 2016·Granted Jun 19, 2018·5 cites·9 claims
- 0782US6759653B2Probe for scanning microscope produced by focused ion beam machiningYOSHIKAZU NAKAYAMA·Filed 2001·Granted Jul 6, 2004·32 cites·8 claims
- 0881US5196572AProcess for producing xylylene diisocyanateMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Mar 23, 1993·19 cites·5 claims
- 0980US7616299B2Surface inspection method and surface inspection apparatusHITACHI HIGH TECH CORP·Filed 2007·Granted Nov 10, 2009·6 cites·3 claims
- 1079US5502244AProcess for producing isocyanatesMITSUBISHI GAS CHEMICAL CO·Filed 1995·Granted Mar 26, 1996·20 cites·4 claims
- 1176US7864310B2Surface inspection method and surface inspection apparatusHITACHI HIGH TECH CORP·Filed 2009·Granted Jan 4, 2011·4 cites·5 claims
- 1276US4304946AProcess for producing ethanolMITSUBISHI GAS CHEMICAL CO·Filed 1980·Granted Dec 8, 1981·23 cites·12 claims
- 1374US7049258B2Microwave dielectric composite compositionDAIKEN CHEMICAL CO LTD·Filed 2002·Granted May 23, 2006·14 cites·7 claims
- 1474US4670409ADielectric ceramic materialKYOCERA CORP·Filed 1985·Granted Jun 2, 1987·25 cites·6 claims
- 1573US6787769B2Conductive probe for scanning microscope and machining method using the sameNAKAYAMA YOSHIKAZU·Filed 2001·Granted Sep 7, 2004·21 cites·9 claims
- 1673US5969187AProcess for producing trans 1,4-bis(aminomethyl)cyclohexaneMITSUBISHI GAS CHEMICAL CO·Filed 1998·Granted Oct 19, 1999·14 cites·5 claims
- 1772US6705154B2Cantilever for vertical scanning microscope and probe for vertical scan microscopeNAKAYAMA YOSHIKAZU·Filed 2001·Granted Mar 16, 2004·20 cites·9 claims
- 1872US5851102ADevice and method for positioning a notched waferHITACHI ELECTR ENG·Filed 1997·Granted Dec 22, 1998·47 cites·6 claims
- 1971US9166040B2Semiconductor deviceTOYOTA MOTOR CO LTD·Filed 2015·Granted Oct 20, 2015·2 cites·4 claims
- 2070US4404394AProcess for producing adipic acid diesterMITSUBISHI GAS CHEMICAL CO·Filed 1981·Granted Sep 13, 1983·10 cites·6 claims
- 2169US9048107B2Semiconductor deviceEGUCHI HIROOMI·Filed 2011·Granted Jun 2, 2015·4 cites·9 claims
- 2269US5527638AHydrogen storage alloy electrode and sealed-type nickel-metal hydride storage battery using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 18, 1996·46 cites·16 claims
- 2367US8142837B2Method and apparatus for applying electrode mixture pasteOKAWA TAKASHI·Filed 2006·Granted Mar 27, 2012·1 cites·4 claims
- 2467US7398678B2Probe for a scanning microscopeNAKAYAMA YOSHIKAZU·Filed 2005·Granted Jul 15, 2008·4 cites·3 claims
- 2567US4289911AProcess for producing methylisobutylketoneMITSUBISHI GAS CHEMICAL CO·Filed 1980·Granted Sep 15, 1981·8 cites·15 claims
- 2665US9525062B2Insulated gate switching elementTOYOTA MOTOR CO LTD·Filed 2016·Granted Dec 20, 2016·1 cites·10 claims
- 2763US6541632B2Process for producing heterocyclic nitrilesMITSUBISHI GAS CHEMICAL CO·Filed 2002·Granted Apr 1, 2003·2 cites·18 claims
- 2862US7405178B2Catalysts for manufacturing carbon substancesDAIKEN CHEMICAL CO LTD·Filed 2002·Granted Jul 29, 2008·5 cites·1 claims
- 2962US6905994B2Microwave dielectric composition and method for producing the sameDAIKEN CHEMICAL CO LTD·Filed 2002·Granted Jun 14, 2005·6 cites·5 claims
- 3062US6107510AProcess for producing nitrile compound and catalyst used thereforMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Aug 22, 2000·8 cites·9 claims
- 3162US4332966AProcess for producing 3-pentenoic estersMITSUBISHI GAS CHEMICAL CO·Filed 1980·Granted Jun 1, 1982·7 cites·11 claims
- 3261US10002974B2Zener diodeTOYOTA MOTOR CO LTD·Filed 2014·Granted Jun 19, 2018·1 cites·3 claims
- 3361US4327225AProcess for producing 2-pentenoic esterMITSUBISHI GAS CHEMICAL CO·Filed 1980·Granted Apr 27, 1982·6 cites·5 claims
- 3460US12191150B2Switching device and method for manufacturing the sameDENSO CORP·Filed 2022·Granted Jan 7, 2025·0 cites·5 claims
- 3560US4650911AProcess for producing ethanolISHIZAKA PRESIDENT OF AGENCY O·Filed 1986·Granted Mar 17, 1987·8 cites·10 claims
- 3659US12315740B2Semiconductor device and method for manufacturing thereofDENSO CORP·Filed 2022·Granted May 27, 2025·0 cites·18 claims
- 3759US12283619B2Nitride semiconductor device and method of manufacturing the sameDENSO CORP·Filed 2022·Granted Apr 22, 2025·0 cites·11 claims
- 3859US5166414AProcess for producing isocyanate compoundMITSUBISHI GAS CHEMICAL CO·Filed 1991·Granted Nov 24, 1992·6 cites·9 claims
- 3958US2024047213A1Method of manufacturing semiconductor deviceDENSO CORP·Filed 2023·Application pending·0 cites
- 4057US8871643B2Lateral semiconductor device and manufacturing method for the sameEGUCHI HIROOMI·Filed 2011·Granted Oct 28, 2014·1 cites·1 claims
- 4157US6802549B2Nanotweezers and nanomanipulatorNAKAYAMA YOSHIKAZU·Filed 2003·Granted Oct 12, 2004·7 cites·3 claims
- 4256US6636050B2Four-terminal measuring device that uses nanotube terminalsNAKAYAMA YOSHIKAZU·Filed 2001·Granted Oct 21, 2003·13 cites·1 claims
- 4356US6284893B2Process for producing nitrile compoundsMITSUBISHI GAS CHEMICAL CO·Filed 2000·Granted Sep 4, 2001·3 cites·11 claims
- 4456US5223462ADielectric ceramic compositionKYOCERA CORP·Filed 1992·Granted Jun 29, 1993·12 cites·9 claims
- 4555US2023379039A1Wireless communication apparatus, wireless communication system and wireless communication control methodNEC CORP·Filed 2023·Application pending·0 cites
- 4655US2025115527A1Liquid humic acid, and method for producing liquid humic acidDENKA COMPANY LTD·Filed 2022·Application pending·0 cites
- 4752US7511270B2Nanotube probe and a method for manufacturing the sameNAKAYAMA YOSHIKAZU·Filed 2004·Granted Mar 31, 2009·6 cites·15 claims
- 4852US4423257AProcess for producing ethanolAGENCY IND SCIENCE TECHN PRESI·Filed 1982·Granted Dec 27, 1983·5 cites·9 claims
- 4952US4408080AProcess for producing acetaldehydeMITSUBISHI GAS CHEMICAL CO·Filed 1981·Granted Oct 4, 1983·4 cites·5 claims
- 5052US2006194106A1Negative electrode plate for nickel-metal hydride storage battery, method for producing the same and nickel-metal hydride storage battery using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
Showing the top 50 of 94 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →