Inventor · disambiguated record
Koichiro Oka
Also filed as: OKA KOICHIRO
25 granted patents·2 pending applications·524 citations·filing 1974–2012
97Inventor score
Files withTORAY INDUSTRIES13YAMAMOTO KOGAKU10AOYAMA NAOYA1KOBUCHI NOBUYUKI1TOKYO SHIBAURA ELECTRIC CO1
Top patents by PatentIndex Score
27 records- 0196US6613433B2Polarizing optical composite and polarizing lensYAMAMOTO KOGAKU·Filed 2001·Granted Sep 2, 2003·109 cites·24 claims
- 0291US7891025B2Protective device for eyesYAMAMOTO KOGAKU·Filed 2007·Granted Feb 22, 2011·26 cites·12 claims
- 0385US7901074B2Lens for safety glassesYAMAMOTO KOGAKU·Filed 2005·Granted Mar 8, 2011·26 cites·16 claims
- 0485US6659608B2Polarizing optical articleYAMAMOTO KOGAKU·Filed 2001·Granted Dec 9, 2003·40 cites·20 claims
- 0583US5294690AThiol methacrylate or acrylate resinTORAY INDUSTRIES·Filed 1993·Granted Mar 15, 1994·26 cites·6 claims
- 0683US4588617AProcess for producing cured epoxy resin spherical particlesTORAY INDUSTRIES·Filed 1984·Granted May 13, 1986·49 cites·15 claims
- 0782US6455163B1Transparent optical articleYAMAMOTO KOGAKU·Filed 2001·Granted Sep 24, 2002·25 cites·14 claims
- 0881US4752528AModified fine particles and a process for their productionTORAY INDUSTRIES·Filed 1986·Granted Jun 21, 1988·23 cites·17 claims
- 0979US5612390AThiol Methacrylate or acrylate resin and a method of making sameTORAY INDUSTRIES·Filed 1995·Granted Mar 18, 1997·25 cites·9 claims
- 1077US4536226AMethod of manufacturing a shadow mask for a color cathode ray tubeTOSHIBA KK·Filed 1984·Granted Aug 20, 1985·17 cites·11 claims
- 1174US5247041AThiol methacrylate or acrylate resin obtained by polymerizing a thiol methacrylate or acrylate compoundTORAY INDUSTRIES·Filed 1992·Granted Sep 21, 1993·15 cites·1 claims
- 1274US4963417APressure-sensitive tabletTORAY INDUSTRIES·Filed 1988·Granted Oct 16, 1990·31 cites·18 claims
- 1373US4989955ALiquid crystal electro-optical element and process for preparation thereofTORAY INDUSTRIES·Filed 1988·Granted Feb 5, 1991·28 cites·12 claims
- 1471US7318960B2Polarizing molded article and process for preparing the sameYAMAMOTO KOGAKU·Filed 2001·Granted Jan 15, 2008·11 cites·12 claims
- 1569US4959398APowdery adhesive and process for preparation thereofTORAY INDUSTRIES·Filed 1989·Granted Sep 25, 1990·17 cites·23 claims
- 1668US6814902B2Method for continuously manufacturing optical articleYAMAMOTO KOGAKU·Filed 2001·Granted Nov 9, 2004·6 cites·20 claims
- 1767US4732961AEpoxy type spherical particulate adhesive and process for preparation thereofTORAY INDUSTRIES·Filed 1986·Granted Mar 22, 1988·14 cites·20 claims
- 1857US2009305049A1Polarizing laminate and process for producing the sameYAMAMOTO KOGAKU·Filed 2009·Application pending·0 cites
- 1956US4420366AMethod for manufacturing shadow maskTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Dec 13, 1983·12 cites·3 claims
- 2053US5399735AThiol methacrylate or acrylate, method of making same and a lens made therefromTORAY INDUSTRIES·Filed 1993·Granted Mar 21, 1995·5 cites·2 claims
- 2152US5502141AMethod of making thiol methacrylate or acrylate and a lens made therefromTORAY INDUSTRIES·Filed 1994·Granted Mar 26, 1996·5 cites·1 claims
- 2247US3963821AMethod for producing synthetic fiber for paperTORAY INDUSTRIES·Filed 1974·Granted Jun 15, 1976·9 cites·5 claims
- 2339US8870373B2Single-lens type polarizing glassesAOYAMA NAOYA·Filed 2011·Granted Oct 28, 2014·0 cites·13 claims
- 2438US2011205627A1Circularly polarizing plate and circularly polarizing lens, and circularly polarizing glassesYAMAMOTO KOGAKU·Filed 2011·Application pending·0 cites
- 2537US5767212AMethod of producing sulfur containing color-free transparent (metha) acrylate polymer having high visible light transmittanceTORAY INDUSTRIES·Filed 1996·Granted Jun 16, 1998·5 cites·13 claims
- 2636US9507176B2Polarization optical article in which uneven coloring by polarization color has been improvedKOBUCHI NOBUYUKI·Filed 2012·Granted Nov 29, 2016·0 cites·14 claims
- 2736US7891806B2EyeglassesYAMAMOTO KOGAKU·Filed 2009·Granted Feb 22, 2011·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →