Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4608198 | Flame retardant for halogen-containing vinyl resins | Yoshitane Watanabe, Keitaro Suzuki | 1986-08-26 |
| 4581404 | Flame retarded resin composition | Yoshitane Watanabe, Chiaki Hosoi, Takai Kawashima | 1986-04-08 |