Inventor · disambiguated record
Yoshihiko Doi
Also filed as: DOI YOSHIHIKO · KOBAYASHI MITSUNORI
16 granted patents·1 pending application·523 citations·filing 1976–2017
95Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES10NAT AEROSPACE LAB2AGENCY IND SCIENCE TECHN1ALLIED MATERIAL CORP1TOKYO TUNGSTEN KK1
Top patents by PatentIndex Score
17 records- 0198US4401719AHighly hard material coated articlesSUMITOMO ELECTRIC INDUSTRIES·Filed 1981·Granted Aug 30, 1983·124 cites·4 claims
- 0293US6739305B2Oil pump for internal combustion engine and method of operating the sameTOYODA BOSHOKU KK·Filed 2002·Granted May 25, 2004·46 cites·17 claims
- 0389US4169913ACoated tool steel and machining tool formed therefromSUMITOMO ELECTRIC INDUSTRIES·Filed 1978·Granted Oct 2, 1979·41 cites·5 claims
- 0485US6518667B1Semiconductor package using micro balls and production method thereofALLIED MATERIAL CORP·Filed 2000·Granted Feb 11, 2003·45 cites·16 claims
- 0582US4582678AMethod of producing rocket combustorsNAT AEROSPACE LAB·Filed 1984·Granted Apr 15, 1986·37 cites·17 claims
- 0682US4507189AProcess of physical vapor depositionSUMITOMO ELECTRIC INDUSTRIES·Filed 1981·Granted Mar 26, 1985·40 cites·13 claims
- 0780US4402994AHighly hard material coated articlesSUMITOMO ELECTRIC INDUSTRIES·Filed 1982·Granted Sep 6, 1983·29 cites·1 claims
- 0878US4584171AMethod of producing rocket combustorsNAT AEROSPACE LAB·Filed 1984·Granted Apr 22, 1986·29 cites·9 claims
- 0978US4137106ASuper hard metal roll assembly and production thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 1976·Granted Jan 30, 1979·30 cites·5 claims
- 1067US4401297ASintering furnace for powder metallurgySUMITOMO ELECTRIC INDUSTRIES·Filed 1981·Granted Aug 30, 1983·22 cites·2 claims
- 1160US4383957AMethod of sintering a ceramic compositionSUMITOMO ELECTRIC INDUSTRIES·Filed 1981·Granted May 17, 1983·15 cites·5 claims
- 1258US4710345AManufacturing method of super-heat-resisting alloy materialAGENCY IND SCIENCE TECHN·Filed 1985·Granted Dec 1, 1987·17 cites·4 claims
- 1355US4994418ACeramic compact and a process for the production of the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Feb 19, 1991·12 cites·4 claims
- 1455US4480013ASubstrate for use in semiconductor apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 1982·Granted Oct 30, 1984·17 cites·9 claims
- 1549US5262366AFormation of a ceramic composite by centrifugal castingSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Nov 16, 1993·9 cites·5 claims
- 1648US2019144973A1Method for manufacturing fine free carbon dispersion type cemented carbide, cutting tip with exchangeable cutting edge, machined product formed from alloy, and method for manufacturing sameUGEL CORP·Filed 2017·Application pending·0 cites
- 1742US5928976AComposite carbide powder used for cemented carbide and method of producing the sameTOKYO TUNGSTEN KK·Filed 1997·Granted Jul 27, 1999·10 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →