Inventor · disambiguated record
Masahiko Oka
Also filed as: OKA MASAHIKO
37 granted patents·7 pending applications·831 citations·filing 1976–2021
98Inventor score
Files withDAIKIN IND LTD21SUMITOMO METAL IND5DAIKIN INST OF ADVANCED CHEMIS4DAINIPPON SCREEN MFG3TOKYO ELECTRON LTD2
Top patents by PatentIndex Score
44 records- 0196US6386271B1Method for continuous casting of steelSUMITOMO METAL IND·Filed 2000·Granted May 14, 2002·80 cites·11 claims
- 0292US4141874AFluorine-containing elastomeric copolymers, process for preparing the same and composition containing the sameDAIKIN IND LTD·Filed 1976·Granted Feb 27, 1979·73 cites·22 claims
- 0391US10566175B2Focus ring and plasma processing apparatusTOKYO ELECTRON LTD·Filed 2018·Granted Feb 18, 2020·2 cites·1 claims
- 0491US4766190ANovel elastomeric fluoropolymer and preparation thereofDAIKIN IND LTD·Filed 1986·Granted Aug 23, 1988·66 cites·5 claims
- 0591US4501869ACross linkable fluorine-containing polymerDAIKIN IND LTD·Filed 1983·Granted Feb 26, 1985·59 cites·28 claims
- 0690US5401818AFluorovinyl etherDAIKIN IND LTD·Filed 1994·Granted Mar 28, 1995·31 cites·3 claims
- 0789US4696989AFluorine-containing elastomeric copolymerDAIKIN IND LTD·Filed 1986·Granted Sep 29, 1987·54 cites·6 claims
- 0888US5349093AFluorovinyl etherDAIKIN IND LTD·Filed 1993·Granted Sep 20, 1994·49 cites·2 claims
- 0987US5001278ANovel fluorovinyl ether and copolymer comprising the sameDAIKIN IND LTD·Filed 1988·Granted Mar 19, 1991·43 cites·6 claims
- 1086US4476601AWashing apparatusDAINIPPON SCREEN MFG·Filed 1983·Granted Oct 16, 1984·63 cites·6 claims
- 1184US4476399AStabilized power source parallel operation systemFUJI ELECTRIC CO LTD·Filed 1983·Granted Oct 9, 1984·38 cites·3 claims
- 1283US5913357AMethod for controlling the level of molten metal for a continuous casting machineSUMITOMO METAL IND·Filed 1996·Granted Jun 22, 1999·25 cites·4 claims
- 1381US6102101AContinuous casting method and apparatus thereofSUMITOMO METAL IND·Filed 1996·Granted Aug 15, 2000·22 cites·11 claims
- 1480US4654444AFluorine-containing diacylperoxides and use thereofDAIKIN IND LTD·Filed 1985·Granted Mar 31, 1987·12 cites·2 claims
- 1578US7220807B2Process of preparing functional fluoropolymersDAIKIN INST OF ADVANCED CHEMIS·Filed 2005·Granted May 22, 2007·5 cites·10 claims
- 1677US6911509B1Functional fluoropolymers and process thereforDAIKIN INST OF ADVANCED CHEMIS·Filed 2004·Granted Jun 28, 2005·16 cites·11 claims
- 1777US2022127397A1Processing additive, molding composition, masterbatch of processing additive and molding articleDAIKIN IND LTD·Filed 2021·Application pending·0 cites
- 1875US7262257B2Telechelic polymers containing reactive functional groupsDAIKIN INST OF ADVANCED CHEMIS·Filed 2004·Granted Aug 28, 2007·14 cites·10 claims
- 1975US6467533B1Machine and method for continuous casting of steelSUMITOMO METAL IND·Filed 2000·Granted Oct 22, 2002·7 cites·14 claims
- 2070US4530972AFluoride-containing polymer and composition containing sameDAIKIN IND LTD·Filed 1982·Granted Jul 23, 1985·17 cites·5 claims
- 2170US4146532AFluoroelastomer composition with diazobicycloundeceniumDAIKIN IND LTD·Filed 1977·Granted Mar 27, 1979·15 cites·13 claims
- 2269US6466001B2Method and apparatus for controlling the molten metal level in a mold in continuous castingSUMITOMO METAL IND·Filed 2000·Granted Oct 15, 2002·5 cites·30 claims
- 2369US4670328ANovel impregnated material of a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl etherDAIKIN IND LTD·Filed 1986·Granted Jun 2, 1987·23 cites·4 claims
- 2469US4663407AFluorine-containing diacylperoxides and use thereofDAIKIN IND LTD·Filed 1986·Granted May 5, 1987·7 cites·3 claims
- 2563US11274172B2Processing additive, molding composition masterbatch of processing additive and molding articleMURAKAMI SHINJI·Filed 2011·Granted Mar 15, 2022·1 cites·5 claims
- 2663US2015114567A1Focus ring and plasma processing apparatusTOKYO ELECTRON LTD·Filed 2014·Application pending·0 cites
- 2762US4975502AProcess for emulsion polymerizationDAIKIN IND LTD·Filed 1988·Granted Dec 4, 1990·13 cites·12 claims
- 2859US4467074AFluoroelastomer compositionDAIKIN IND LTD·Filed 1982·Granted Aug 21, 1984·11 cites·4 claims
- 2956US4812011AOptical fiber comprising a methacrylate polymer core and a fluoro polymer claddingSUMITOMO CHEMICAL CO·Filed 1987·Granted Mar 14, 1989·17 cites·12 claims
- 3054US5112973AFluorine-containing acrylic acid derivative and polymer thereofDAIKIN IND LTD·Filed 1989·Granted May 12, 1992·6 cites·3 claims
- 3154US4601627AApparatus for transferring thin sheet-like article such as wafersDAINIPPON SCREEN MFG·Filed 1984·Granted Jul 22, 1986·17 cites·11 claims
- 3251US8420739B2Fluorine-containing elastomer compositionNISHIMURA YOSUKE·Filed 2009·Granted Apr 16, 2013·0 cites·7 claims
- 3349US4943653ANovel fluorine-containing acrylic acid derivative and polymer thereofDAIKIN IND LTD·Filed 1987·Granted Jul 24, 1990·5 cites·8 claims
- 3449US4931511ACross-linkable coating compositionDAIKIN IND LTD·Filed 1988·Granted Jun 5, 1990·10 cites·10 claims
- 3549US4588185ATransfer device of sheet objectDAINIPPON SCREEN MFG·Filed 1983·Granted May 13, 1986·8 cites·4 claims
- 3646US5117035AFluorine-containing acrylic acid derivative and polymer thereofDAIKIN IND LTD·Filed 1989·Granted May 26, 1992·4 cites·4 claims
- 3745US8580896B2Process for preparing fluorine-containing polymerKISHINE MITSURU·Filed 2007·Granted Nov 12, 2013·0 cites·10 claims
- 3845US2006014904A1Polymer compositions and method for producing a molded bodyDAIKIN IND LTD·Filed 2005·Application pending·0 cites
- 3943US2003109646A1Resin composition and method of producing shaped articlesDAIKIN INST OF ADVANCED CHEMIS·Filed 2001·Application pending·0 cites
- 4042US5400080AApparatus and methods for combining video signals representing images having different depthsSONY CORP·Filed 1993·Granted Mar 21, 1995·7 cites·12 claims
- 4142US2004242771A1Low-temperature-decomposable engineering plastic resin composition and production method of molding using the sameFiled 2002·Application pending·0 cites
- 4241US4954588ANovel fluorine-containing non-crystalline copolymerDAIKIN IND LTD·Filed 1989·Granted Sep 4, 1990·6 cites·7 claims
- 4341US2004102572A1Resin composition and process for producing moldingFiled 2002·Application pending·0 cites
- 4438US2001027854A1Continuous casting method for steelFiled 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Masahiko Oka 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 →