Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743274 | Oral composition and abrasive therefor | Toshiyuki Ozawa, Osamu Uotani | 1988-05-10 |
| 4587120 | Oral composition and abrasive therefor | Toshiyuki Ozawa, Osamu Uotani | 1986-05-06 |