Inventor · disambiguated record
Takehiko Okamoto
Also filed as: OKAMOTO TAKEHIKO
11 granted patents·778 citations·filing 1972–1993
93Inventor score
Top patents by PatentIndex Score
11 records- 0197US4664669AComposite hollow fiber-type separation membranes, processes for the preparation thereof and their useKURARAY CO·Filed 1984·Granted May 12, 1987·161 cites·2 claims
- 0295US4938778AComposite hollow fiber type separation membranes processes for the preparation thereof and their useKURARAY CO·Filed 1986·Granted Jul 3, 1990·115 cites·4 claims
- 0395US4547289AFiltration apparatus using hollow fiber membraneOKANO YOSHIHIRO·Filed 1984·Granted Oct 15, 1985·148 cites·11 claims
- 0495US3981944AMethod for producing impact resistant thermoplastic resin by continuous bulk polymerizationTORAY INDUSTRIES·Filed 1974·Granted Sep 21, 1976·70 cites·9 claims
- 0594US5340480APolysulfone-based hollow fiber membrane and process for manufacturing the sameKURARAY CO·Filed 1993·Granted Aug 23, 1994·129 cites·11 claims
- 0690US4279752APolyvinyl alcohol semi-permeable membrane and method for producing sameKURARAY CO·Filed 1979·Granted Jul 21, 1981·60 cites·22 claims
- 0787US3966822ACatalytic preparation of ketones from aldehydesCHISSO CORP·Filed 1972·Granted Jun 29, 1976·20 cites·5 claims
- 0882US4874522APolysulfone hollow fiber membrane and process for making the sameKURARAY CO·Filed 1988·Granted Oct 17, 1989·51 cites·20 claims
- 0965US3950455AMethod for graft polymerization of diene polymerTORAY INDUSTRIES·Filed 1974·Granted Apr 13, 1976·12 cites·7 claims
- 1065US3944622AMethod for producing ketonesCHISSO CORP·Filed 1973·Granted Mar 16, 1976·7 cites·11 claims
- 1139US4325915ABulk polymerization reactorTORAY INDUSTRIES·Filed 1980·Granted Apr 20, 1982·5 cites·11 claims
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