Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10150202 | Small automatic polishing liquid cleaning device for rigid gas permeable contact lens | Jun Jiang, Hao Chen, Ying Shi, Zhaolin Xia | 2018-12-11 |
| 6536586 | Combination vessel of a cap type sealing tool having tamper function and a bottle portion | Masaharu Nakao, Yukihiro Ogawa, Yasuhiro Yokoyama, Seiichi Ichikawa | 2003-03-25 |
| 6276920 | Mold assembly for lens blank, having mold cavity and material reservoir defined by press-fitting engagement of upper and lower molds with intermediate sleeve | Seiichi Ichikawa | 2001-08-21 |
| 6134342 | Visual inspection method and apparatus for contact lenses | Minoru Aoki, Katsumi MAENOSONO, Minoru Fujita, Norihiro Tanaka, Yasuo Horiguchi | 2000-10-17 |
| 6071111 | Mold assembly for forming contact lens blank | Yasuhiro Yokoyama, Kunio Maruyama | 2000-06-06 |
| 5901948 | Jig for holding contact lens material, using light-scattering bonding adhesive | Yasuyoshi Yamamoto, Hiroyuki Ohyama, Seiichi Ichikawa, Keiji Yamashita | 1999-05-11 |
| 5630901 | Method and jig for holding contact lens material, using light-scattering bonding adhesive | Yasuyoshi Yamamoto, Hiroyuki Ohyama, Seiichi Ichikawa, Keiji Yamashita | 1997-05-20 |