Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172640 | Eyeglass lens processing apparatus | Motoshi Tanaka, Ryoji Shibata | 2012-05-08 |
| 7650998 | Apparatus of treating grinding water for processing periphery of eyeglass lens | Motoshi Tanaka, Akihiro Nagura | 2010-01-26 |