Inventor · disambiguated record
Keishi Yoshikawa
Also filed as: YOSHIKAWA KEISHI
3 granted patents·3 pending applications·31 citations·filing 2008–2012
65Inventor score
Top patents by PatentIndex Score
6 records- 0186US7922324B2Synthetic resin lens and eye lens article thereofYAMAMOTO KOGAKU·Filed 2009·Granted Apr 12, 2011·26 cites·7 claims
- 0262US9015868B2Fog-resistant structure and protective device for eyesMATSUMOTO KIMIO·Filed 2010·Granted Apr 28, 2015·5 cites·21 claims
- 0357US2009305049A1Polarizing laminate and process for producing the sameYAMAMOTO KOGAKU·Filed 2009·Application pending·0 cites
- 0448US2009100577A1Double lensYAMAMOTO KOGAKU·Filed 2008·Application pending·0 cites
- 0538US2011205627A1Circularly polarizing plate and circularly polarizing lens, and circularly polarizing glassesYAMAMOTO KOGAKU·Filed 2011·Application pending·0 cites
- 0636US9507176B2Polarization optical article in which uneven coloring by polarization color has been improvedKOBUCHI NOBUYUKI·Filed 2012·Granted Nov 29, 2016·0 cites·14 claims
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