Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4504636 | Process for preparation of formaldehyde copolymers | Kazumasa Tsunemi, Taro Suzuki | 1985-03-12 |
| 4352923 | Process for polymerizing formaldehyde | Hisashi Kono, Kenji Terai, Masaki Hisadomi, Katumi Uemura, Sumio Ohta | 1982-10-05 |