Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357716 | Holding device for holding optical element to be ground | Takayuki Kishida, Mitsuaki Takahashi, Masaki Watanabe | 1994-10-25 |
| 5291692 | Polishing work holder | Mitsuaki Takahashi, Takayuki Kishida, Masaki Watanabe | 1994-03-08 |