Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686981 | Ophthalmologic device for accurately positioning a contact lens to an eye | Tadashi Sawano, Hiroyuki Ohyama, Shingo Hibino | 1997-11-11 |
| 5502517 | Soft contact lens with a back surface whose central and intermediate portions are formed by different ellipsoidal surfaces continuously contiguous to each other | Bungo Takagi, Kazuya Miyamura | 1996-03-26 |
| 5422687 | Contact lens wherein central correction region has a center 0.2-2.4mm offset from lens geometric center and a diameter of 0.8-3.5mm | Kyoichi Tanaka, Shingo Hibino, Yoshikazu Miura, Tadashi Sawano, Kenichi Ishihara +1 more | 1995-06-06 |