Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666393 | Apparatus for manufacturing polyurethane foam slabs in a batch | Sadao Kumasaka, Satomi Tada, Osamu Fujii, Masao Idei | 1987-05-19 |
| 4352651 | Mold equipment | Sadao Kumasaka, Satomi Tada, Kazuo Hashimoto | 1982-10-05 |
| 4325688 | Mold equipment | Sadao Kumasaka, Satomi Tada, Junichi Seki | 1982-04-20 |