Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686087 | Apparatus for thermoplastic resins pre-expanding process | Hirofumi Maeda, Kyoichi Nakamura | 1987-08-11 |
| 4524154 | Pre-expanding process and apparatus for the same | Hirofumi Maeda, Kyoichi Nakamura | 1985-06-18 |