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Patent applications and USPTO patent grants for Ikai; Yojiro.The latest application filed is for "resin composition for optical film, optical film and process for producing the optical film".
Patent | Date |
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Transparent heat-resistant resin optical material and film Grant 7,001,967 - Toyomasu , et al. February 21, 2 | 2006-02-21 |
Resin composition for optical film, optical film and process for producing the optical film App 20040190138 - Toyomasu, Shinsuke ;   et al. | 2004-09-30 |
Transparent heat-resistant resin optical material and film App 20040063887 - Toyomasu, Shinsuke ;   et al. | 2004-04-01 |
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