Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147396 | Intraocular lens | Takeyuki Sawamoto, Niro Tarumi, Hiroshi Sakai | 1992-09-15 |
| 5118548 | Substrate for information-recording media | Tsuyoshi Ohkubo, Reisuke Okada, Takeyuki Sawamoto | 1992-06-02 |