Inventor · disambiguated record
Yukio Aoki
Also filed as: AOKI YUKIO
32 granted patents·1 pending application·1,053 citations·filing 1974–2004
98Inventor score
Files withNIPPON CATALYTIC CHEM IND13MITSUBISHI ELECTRIC CORP6NIPPON YAKIN KOGYO CO LTD3NIPPON KAYAKU KK2AOKI YUKIO1
Top patents by PatentIndex Score
33 records- 0197US4221768ACatalyst for purifying exhaust and waste gasesNIPPON CATALYTIC CHEM IND·Filed 1978·Granted Sep 9, 1980·129 cites·15 claims
- 0295US5198581AProcess for producing unsaturated aldehydes and unsaturated acidsNIPPON CATALYTIC CHEM IND·Filed 1991·Granted Mar 30, 1993·68 cites·8 claims
- 0394US4873217ACatalyst for oxidation of olefin or tertiary alcohol and process for production thereofNIPPON CATALYTIC CHEM IND·Filed 1988·Granted Oct 10, 1989·42 cites·15 claims
- 0490US5046052AInternal low voltage transformation circuit of static random access memorySONY CORP·Filed 1989·Granted Sep 3, 1991·74 cites·4 claims
- 0590US4018706ACatalysts for purifying exhaust and waste gasesNIPPON CATALYTIC CHEM IND·Filed 1976·Granted Apr 19, 1977·48 cites·7 claims
- 0688US5276178AProcess for producing methacrolein and methacrylic acidNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Jan 4, 1994·70 cites·3 claims
- 0787US4954650AMethod for production of methacrylic acidSUMITOMO CHEMICAL CO·Filed 1989·Granted Sep 4, 1990·29 cites·9 claims
- 0886US5075585ARotary machineMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Dec 24, 1991·70 cites·4 claims
- 0984US3994317APipe couplingNITTO KOHKI CO·Filed 1974·Granted Nov 30, 1976·37 cites·14 claims
- 1083US5264627AMethod for production of methacrylic acidNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Nov 23, 1993·25 cites·9 claims
- 1181US5677686AAbsolute position detection apparatus and error compensation methods thereforMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Oct 14, 1997·49 cites·21 claims
- 1278US5206431AProcess for producing methacrylic acidNIPPON CATALYTIC CHEM IND·Filed 1992·Granted Apr 27, 1993·43 cites·3 claims
- 1377US5618974ACatalyst for production of methacrylic acid and method for production of methacrylic acid by the use of the catalystNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Apr 8, 1997·45 cites·12 claims
- 1477US5153162ACatalyst for the production of methacrylic acidNIPPON CATALYTIC CHEM IND·Filed 1990·Granted Oct 6, 1992·41 cites·3 claims
- 1575US6429332B1Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalystNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Aug 6, 2002·42 cites·12 claims
- 1670US5700752ACatalyst for production of unsaturated aldehyde and unsaturated carboxylic acid and method for production of unsaturated aldehyde and unsaturated carboxylic acid by the use of the catalystNIPPON CATALYTIC CHEM IND·Filed 1995·Granted Dec 23, 1997·29 cites·10 claims
- 1768US5593646AMethod for producing an exhaust gas cleaning metal carrierNIPPON YAKIN KOGYO CO LTD·Filed 1994·Granted Jan 14, 1997·23 cites·12 claims
- 1867US5981804ACatalyst for production of unsaturated aldehyde and unsaturated carboxylic acid and method for production of unsaturated aldehyde and unsaturated carboxylic acid by use of the catalystNIPPON CATALYTIC CHEM IND·Filed 1997·Granted Nov 9, 1999·23 cites·1 claims
- 1966US5329043AMethod of preparing methacrolein and/or methacrylic acidNIPPON CATALYTIC CHEM IND·Filed 1993·Granted Jul 12, 1994·9 cites·16 claims
- 2064US6027808ACemented carbide for a drill, and for a drill forming holes in printed circuit boards which is made of the cemented carbideSHINKO KOBELCO TOOL CO LTD·Filed 1997·Granted Feb 22, 2000·28 cites·9 claims
- 2164US5276722AAbsolute multi-revolution encoderMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Jan 4, 1994·23 cites·13 claims
- 2262US5406077AAbsolute value encoder and an output correction method of absolute value encoder having a signal processing/control circuitMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Apr 11, 1995·23 cites·7 claims
- 2359US5557847AMethod of producing a metal honeycomb carrierNIPPON YAKIN KOGYO CO LTD·Filed 1995·Granted Sep 24, 1996·26 cites·6 claims
- 2455US4005148ADerivatives of propargyl or alkenyl phenyl ether and use thereof as acaricideNIPPON KAYAKU KK·Filed 1975·Granted Jan 25, 1977·4 cites·3 claims
- 2554US6323786B1Absolute-value encoder deviceMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Nov 27, 2001·7 cites·13 claims
- 2652US5231284AMethod and apparatus using laser light for detecting the rotational position of a servomotor and the likeMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Jul 27, 1993·12 cites·27 claims
- 2749US5891248AApparatus for producing an exhaust gas cleaning metal carrierNIPPON YAKIN KOGYOCO LTD·Filed 1996·Granted Apr 6, 1999·15 cites·2 claims
- 2847US4091109ADiphenylether derivatives and use thereof as an acaricideNIPPON KAYAKU KK·Filed 1976·Granted May 23, 1978·2 cites·3 claims
- 2941US2004069189A1Alternative to portland cement, method for producing the same, hard wood chip cement board using the same and method for producing the boardFiled 2002·Application pending·0 cites
- 3039US8859115B2Cemented carbide material for surface coated gear cutting tool and surface coated gear cutting toolAOKI YUKIO·Filed 2004·Granted Oct 14, 2014·1 cites·2 claims
- 3133US5395599ACatalyst-carrying metallic carrier and production method thereofNIPPON YAKIN KOGYO CO LTD·Filed 1992·Granted Mar 7, 1995·7 cites·6 claims
- 3232US5676726AMatrix and agricultural materialsOTSUKA KAGAKU KK·Filed 1994·Granted Oct 14, 1997·2 cites·4 claims
- 3324US5295904AAir conditioning systemHITACHI LTD·Filed 1992·Granted Mar 22, 1994·7 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Yukio Aoki 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 →