Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988271 | Apparatus for producing polyurethane foam | Sadao Kumasaka, Satomi Tada, Koretoshi Katsuki, Osamu Fujii, Tutomu Yamamoto +4 more | 1991-01-29 |
| 4666393 | Apparatus for manufacturing polyurethane foam slabs in a batch | Sadao Kumasaka, Satomi Tada, Osamu Fujii, Goro Yoneyama | 1987-05-19 |