Inventor · disambiguated record
Yoshiharu Okumura
Also filed as: OKUMURA YOSHIHARU
30 granted patents·1 pending application·626 citations·filing 1979–2002
97Inventor score
Files withTOA NENRYO KOGYO KK15TORAY INDUSTRIES7TONEN CORP4EXXON RESEARCH ENGINEERING CO2OPTEX CO LTD2
Top patents by PatentIndex Score
31 records- 0195US4554260ATwo stage process for improving the catalyst life of zeolites in the synthesis of lower olefins from alcohols and their ether derivativesEXXON RESEARCH ENGINEERING CO·Filed 1984·Granted Nov 19, 1985·84 cites·4 claims
- 0293US4638106ATwo stage process for improving the catalyst life of zeolites in the synthesis of lower olefins from alcohols and their ether derivativesEXXON RESEARCH ENGINEERING CO·Filed 1985·Granted Jan 20, 1987·77 cites·11 claims
- 0391US6791087B1Differential infrared detectorOPTEX CO LTD·Filed 2002·Granted Sep 14, 2004·45 cites·19 claims
- 0490US4225727AProcess for the production of unsaturated estersTOA NENRYO KOGYO KK·Filed 1979·Granted Sep 30, 1980·25 cites·8 claims
- 0585US4507512AProcess for hydration of olefinsTOA NENRYO KOGYO KK·Filed 1984·Granted Mar 26, 1985·19 cites·14 claims
- 0685US4499313AProcess for hydration of olefinsTOA NENRYO KOGYO KK·Filed 1984·Granted Feb 12, 1985·38 cites·14 claims
- 0783US4284831AProcess for the production of tertiary alcoholsTOA NENRYO KOGYO KK·Filed 1980·Granted Aug 18, 1981·17 cites·10 claims
- 0880US4921988AProcess for preparing aminopropyl silanesTOA NENRYO KOGYO KK·Filed 1988·Granted May 1, 1990·19 cites·7 claims
- 0978US4948515AFilter for liquid and method of filtering liquidTORAY INDUSTRIES·Filed 1988·Granted Aug 14, 1990·39 cites·22 claims
- 1076US5296061AProcess for producing a tubular nonwoven fabric and tubular nonwoven fabric produced by the sameTORAY INDUSTRIES·Filed 1992·Granted Mar 22, 1994·33 cites·16 claims
- 1176US4927953AProcess for preparing aminopropyl silanesTONEN CORP·Filed 1989·Granted May 22, 1990·13 cites·4 claims
- 1275US4270011AProcess for the production of tertiary butyl alcoholTOA NENRYO KOGYO KK·Filed 1980·Granted May 26, 1981·11 cites·3 claims
- 1374US5145979AProcesses for the preparation of γ-methacryloxypropylsilane compoundsTONEN CORP·Filed 1991·Granted Sep 8, 1992·17 cites·6 claims
- 1474US5062158AProtective sheets having self-adhesive property used for wearing on clothes and keeping them cleanTORAY INDUSTRIES·Filed 1989·Granted Nov 5, 1991·33 cites·14 claims
- 1574US4966981AProcess for preparing epoxy group-containing silanesTOA NENRYO KOGYO KK·Filed 1990·Granted Oct 30, 1990·21 cites·4 claims
- 1671US4327231AProcess for the production of tertiary alcoholsTOA NENRYO KOGYO KK·Filed 1980·Granted Apr 27, 1982·9 cites·9 claims
- 1768US5429848AElectret tubular nonwoven fabric comprising circumferentially oriented parallel reinforcing fibers within a tubular nonwoven fabricTORAY INDUSTRIES·Filed 1993·Granted Jul 4, 1995·23 cites·6 claims
- 1865US4358626AProcess for the production of secondary alcoholsTOA NENRYO KOGYO KK·Filed 1981·Granted Nov 9, 1982·7 cites·9 claims
- 1963US4888436AProcess for preparing aminopropyl alkoxy silanesTOA NENRYO KOGYO KK·Filed 1988·Granted Dec 19, 1989·8 cites·7 claims
- 2060US4820674AProcess for preparing a hydrosilylation catalystTOA NENRYO KOGYO KK·Filed 1988·Granted Apr 11, 1989·15 cites·4 claims
- 2159US5142082ASilane compound and processes for the preparation thereofTONEN CORP·Filed 1991·Granted Aug 25, 1992·7 cites·5 claims
- 2259US4897501AProcess for preparing aminopropyl alkoxy silanesTOA NENRYO KOGYO KK·Filed 1988·Granted Jan 30, 1990·6 cites·4 claims
- 2355US5248803ASilane compound and processes for the preparation thereofTONEN CORP·Filed 1992·Granted Sep 28, 1993·6 cites·1 claims
- 2453US6909370B2Intruder detection device and intruder detection methodOPTEX CO LTD·Filed 2002·Granted Jun 21, 2005·8 cites·18 claims
- 2550US5997789AProcess of melt-spinning synthetic fiberTORAY INDUSTRIES·Filed 1998·Granted Dec 7, 1999·8 cites·12 claims
- 2647US5429847ATubular nonwoven fabric comprising circumferentially oriented parallel reinforcing fibers within a tubular nonwoven fabricTORAY INDUSTRIES·Filed 1993·Granted Jul 4, 1995·12 cites·8 claims
- 2745US4725420AProcess for the production of silanesTOA NENRYO KOGYO KK·Filed 1986·Granted Feb 16, 1988·7 cites·7 claims
- 2844US4481373AMethod of manufacturing ketonesTOA NENRYO KOGYO KK·Filed 1982·Granted Nov 6, 1984·2 cites·1 claims
- 2939US4775651AProcess for the production of silanesTOA NENRYO KOGYO KK·Filed 1987·Granted Oct 4, 1988·5 cites·9 claims
- 3037US5266369APackaging material made of electret material and packaging methodTORAY INDUSTRIES·Filed 1992·Granted Nov 30, 1993·12 cites·3 claims
- 3128US2001029140A1Seat belt webbing and passenger-holding device using the sameTORAY INDUSTIRES INC·Filed 2001·Application pending·0 cites
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