Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6964799 | Shrinkage control material and elastomeric molding | Yoshiyuki Nishi, Yasunari Ashida, Tatsumi Hirano | 2005-11-15 |
| 5337094 | Eye observation apparatus | Yoshihiko Yamada | 1994-08-09 |