Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5141741 | Anti-sunburn skin-care preparation | Yoshimi Sato, Makoto EGAWA, Keiji Takeuchi | 1992-08-25 |
| 5073545 | Agent containing an ellagic acid series compound for external application and use thereof | Masatoshi Arima, Hiroaki Nishizawa, Keiji Takeuchi, Hiroshi Deura | 1991-12-17 |