Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211940 | Transparent liquid oral composition | Keiji Ishiguro, Minako Seyama | 1993-05-18 |
| 4743274 | Oral composition and abrasive therefor | Toshiyuki Ozawa, Rieko Hayashi | 1988-05-10 |
| 4587120 | Oral composition and abrasive therefor | Toshiyuki Ozawa, Rieko Hayashi | 1986-05-06 |