Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4524018 | Lasting fragrant article using gradually decomposing perfume | Ryokichi Tarao, Yoshio Yamamoto | 1985-06-18 |
| 4500725 | Silane derivative and fragrant article | Ryokichi Tarao, Yoshio Yamamoto | 1985-02-19 |