Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6030554 | Method of sterilizing intraocular lens by electron beam | — | 2000-02-29 |
| 5059018 | Colored contact lens | Shinji Kanome | 1991-10-22 |
| 4529747 | Soft contact lenses | Yasuyuki Kato, Kentaro Kasuga, Yoshitaka Taniyama, Tamio Suzuki | 1985-07-16 |
| 4235985 | Polymer for contact lens and contact lens made thereof | Kyoichi Tanaka, Kouzou Takahashi, Mitsuhiro Kanada, Yasuyuki Kato | 1980-11-25 |