Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5176159 | Lens case for contact lens cleaning device | Mikio Yoshihara, Tomio Oguma | 1993-01-05 |
| 5161559 | Cleaning device for contact lenses | Mikio Yoshihara, Tomio Oguma, Yasuhiro Aso | 1992-11-10 |
| 5105841 | Cleaning device for contact lenses | Tomio Oguma, Mikio Yoshihara, Yasuhiro Aso | 1992-04-21 |