Inventor · disambiguated record
Keigo Kato
Also filed as: ANDO MASAHISA · KATO KEIGO
16 granted patents·2 pending applications·144 citations·filing 1977–2023
93Inventor score
Files withTOYOTA MOTOR CO LTD8AOYAMA SEISAKUSHO7MITSUBISHI MOTORS CORP1MITSUI PETROCHEMICAL IND1TORAY INDUSTRIES1
Top patents by PatentIndex Score
18 records- 0183US4520126ACatalyst composition suitable for the dimerization or codimerization of alpha-olefinsMITSUI PETROCHEMICAL IND·Filed 1982·Granted May 28, 1985·20 cites·9 claims
- 0280US4158351AFlow control valve for an exhaust gas recirculation apparatus of an exhaust gas pressure control typeTOYOTA MOTOR CO LTD·Filed 1977·Granted Jun 19, 1979·20 cites·3 claims
- 0367US4188785AFluid couplingTOYOTA MOTOR CO LTD·Filed 1978·Granted Feb 19, 1980·16 cites·8 claims
- 0465US2025164880A1Resin composition, resin composition film and semiconductor device using these productsTORAY INDUSTRIES·Filed 2023·Application pending·0 cites
- 0559US6520210B2Spool valveAOYAMA SEISAKUSHO·Filed 2001·Granted Feb 18, 2003·4 cites·12 claims
- 0657US4407254AIntake heating apparatus of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1982·Granted Oct 4, 1983·15 cites·9 claims
- 0757US4279323APower steering device for wheeled vehiclesTOYOTA MOTOR CO LTD·Filed 1979·Granted Jul 21, 1981·15 cites·5 claims
- 0848US4425899AIntake heating device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1982·Granted Jan 17, 1984·12 cites·5 claims
- 0943US4399796AIntake heating device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Aug 23, 1983·5 cites·10 claims
- 1040US6675477B2Method for manufacturing spool valveAOYAMA SEISAKUSHO·Filed 2002·Granted Jan 13, 2004·0 cites·9 claims
- 1140US4416242AIntake heating apparatus of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1982·Granted Nov 22, 1983·7 cites·6 claims
- 1239US6061906AProcess for manufacturing a spool valveAOYAMA SEISAKUSHO·Filed 1998·Granted May 16, 2000·6 cites·8 claims
- 1338US5782268ASpool valve and process for manufacturing the sameAOYAMA SEISAKUSHO·Filed 1997·Granted Jul 21, 1998·6 cites·8 claims
- 1436US4398522AIntake heating device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Aug 16, 1983·5 cites·11 claims
- 1536US2002013178A1Reciprocating type thread rolling apparatusAOYAMA SEISAKUSHO·Filed 2001·Application pending·0 cites
- 1635US5794666AGaseous fuel filling structure and filling method using the sameMITSUBISHI MOTORS CORP·Filed 1996·Granted Aug 18, 1998·7 cites·27 claims
- 1734US6202283B1Method of manufacturing a shaft with surfaces thereof modifiedAOYAMA SEISAKUSHO·Filed 1998·Granted Mar 20, 2001·4 cites·20 claims
- 1831US6089068AMethod of manufacturing a shaft having a fluid flow passageAOYAMA SEISAKUSHO·Filed 1998·Granted Jul 18, 2000·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →