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Patent applications and USPTO patent grants for Taniyama; Yoshitaka.The latest application filed is for "process for producing a tinted contact lens".
Patent | Date |
---|---|
Process for producing a tinted contact lens Grant 5,516,467 - Niwa , et al. May 14, 1 | 1996-05-14 |
Method for treating the surface of an oxygen permeable hard contact lens Grant 4,980,208 - Sugiyama , et al. December 25, 1 | 1990-12-25 |
Contact lens material Grant 4,814,402 - Nakashima , et al. March 21, 1 | 1989-03-21 |
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