Yoshikawa; Keishi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yoshikawa; Keishi.The latest application filed is for "polarization optical article in which uneven coloring by polarization color has been improved".

Company Profile

0.5.6

Yoshikawa; Keishi - Higashiosaka N/A JP
Yoshikawa; Keishi - Osaka N/A JP
YOSHIKAWA; Keishi - Higashiosaka-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Polarization optical article in which uneven coloring by polarization color has been improved Grant 9,507,176 - Kobuchi , et al. November 29, 2	2016-11-29
Fog-resistant structure and protective device for eyes Grant 9,015,868 - Matsumoto , et al. April 28, 2	2015-04-28
Polarization Optical Article In Which Uneven Coloring By Polarization Color Has Been Improved App 20120250142 - KOBUCHI; Nobuyuki ; et al.	2012-10-04
Circularly Polarizing Plate And Circularly Polarizing Lens, And Circularly Polarizing Glasses App 20110205627 - KOBUCHI; Nobuyuki ; et al.	2011-08-25
Fog-resistant Structure And Protective Device For Eyes App 20110126345 - Matsumoto; Kimio ; et al.	2011-06-02
Synthetic resin lens and eye lens article thereof Grant 7,922,324 - Ishibashi , et al. April 12, 2	2011-04-12
Polarizing Laminate And Process For Producing The Same App 20090305049 - KOBUCHI; Nobuyuki ; et al.	2009-12-10
Synthetic Resin Lens And Eye Lens Article Thereof App 20090296040 - Ishibashi; Fumio ; et al.	2009-12-03
Double Lens App 20090100577 - Kobayashi; Hirokazu ; et al.	2009-04-23

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