Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5148023 | Ultraviolet ray measuring apparatus for predicting sunburn level and for obtaining SPF values of cosmetics | Mutsumi Hayashi, Chikayasu Yamazaki, Minoru Ueda, Ichiro Kumo | 1992-09-15 |