Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D597586 | Connection portion of eyeglasses | — | 2009-08-04 |
| 6338556 | Rim lock of glasses frame and glasses frame | — | 2002-01-15 |
| 5840671 | Cleaning solution for contact lens exhibiting excellent detergency | Atumi Fujimura, Shinji Tanaka | 1998-11-24 |
| 5460658 | Method for cleaning or preserving a contact lens by means of liquid composition | Akira Nakagawa | 1995-10-24 |
| 5279674 | Method of treating contact lens | Kiyohiko Ohta, Keiko Watanabe | 1994-01-18 |
| 5181604 | Contact lens holder and treating device | Kiyohiko Ohta, Keiko Watanabe, Makoto Nakagawa, Tomio Nagao | 1993-01-26 |
| 5167323 | Lens treating device for treating contact lens | Kiyohiko Ohta, Keiko Watanabe | 1992-12-01 |