Inventor · disambiguated record
Takuji Itoh
Also filed as: AKITSUKI IKUO · ITOH TAKUJI
21 granted patents·1,017 citations·filing 1974–1996
97Inventor score
Files withTOA NENRYO KOGYO KK16EXXON RESEARCH ENGINEERING CO2HITACHI LTD1SUMITOMO METAL SMI ELECTRONICS1TONEN CORP1
Top patents by PatentIndex Score
21 records- 0196US4008149AProcess of hydro-refining hydrocarbon oilsTOA NENRYO KOGYO KK·Filed 1976·Granted Feb 15, 1977·120 cites·10 claims
- 0294US4849311AImmobilized electrolyte membraneTOA NENRYO KOGYO KK·Filed 1988·Granted Jul 18, 1989·140 cites·19 claims
- 0393US5375069AWiring routes in a plurality of wiring layersHITACHI LTD·Filed 1994·Granted Dec 20, 1994·196 cites·18 claims
- 0492US5912505ASemiconductor package and semiconductor deviceSUMITOMO METAL SMI ELECTRONICS·Filed 1996·Granted Jun 15, 1999·149 cites·21 claims
- 0585US4218308AHydrogenation catalystTOA NENRYO KOGYO KK·Filed 1979·Granted Aug 19, 1980·36 cites·8 claims
- 0684US4186078ACatalyst and process for hydrofining petroleum waxTOA NENRYO KOGYO KK·Filed 1978·Granted Jan 29, 1980·33 cites·10 claims
- 0784US4134856ACatalyst for hydro-refining hydrocarbon oilsTOA NENRYO KOGYO KK·Filed 1976·Granted Jan 16, 1979·36 cites·6 claims
- 0884US4052337ACatalyst for reduction of nitrogen oxides and process for preparing sameTOA NENRYO KOGYO KK·Filed 1976·Granted Oct 4, 1977·42 cites·2 claims
- 0982US4139494ACatalyst for hydrofining petroleum waxTOA NENRYO KOGYO KK·Filed 1977·Granted Feb 13, 1979·33 cites·10 claims
- 1080US4497909AHydrogenation processTOA NENRYO KOGYO KK·Filed 1981·Granted Feb 5, 1985·33 cites·9 claims
- 1178US4959338AHeat-resistant catalyst carrier moldings and catalysts for combustionTOA NENRYO KOGYO KK·Filed 1988·Granted Sep 25, 1990·37 cites·14 claims
- 1278US4840778AInorganic polysilazane and method of producing the sameTOA NENRYO KOGYO KK·Filed 1985·Granted Jun 20, 1989·28 cites·24 claims
- 1374US4124536ACatalyst for reducing nitrogen oxidesTOA NENRYO KOGYO KK·Filed 1976·Granted Nov 7, 1978·28 cites·9 claims
- 1472US3962071AProcess for producing lubricating oilsTOA NENRYO KOGYO KK·Filed 1974·Granted Jun 8, 1976·14 cites·7 claims
- 1570US4104361ACatalyst for reduction of nitrogen oxides and process for preparing the sameEXXON RESEARCH ENGINEERING CO·Filed 1977·Granted Aug 1, 1978·24 cites·12 claims
- 1660US5094993AHydrotreating catalystsTONEN CORP·Filed 1990·Granted Mar 10, 1992·21 cites·6 claims
- 1759US4016241AProcess for reducing nitrogen oxides from flue gasTOA NENRYO KOGYO KK·Filed 1975·Granted Apr 5, 1977·13 cites·5 claims
- 1858US4020011AMethod for preparing hydrocarbon conversion catalystTOA NENRYO KOGYO KK·Filed 1975·Granted Apr 26, 1977·12 cites·21 claims
- 1949US3944503ACatalyst for conversion of heavy hydrocarbon oilsEXXON RESEARCH ENGINEERING CO·Filed 1974·Granted Mar 16, 1976·6 cites·7 claims
- 2046US4199555ACatalyst for reducing nitrogen oxidesTOA NENRYO KOGYO KK·Filed 1978·Granted Apr 22, 1980·9 cites·6 claims
- 2146US4049581AMethod for preparing hydrocarbon conversion catalyst using acid amide solutions to impregnate a tin componentTOA NENRYO KOGYO KK·Filed 1975·Granted Sep 20, 1977·7 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →