Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4275023 | Expanded particulate material of polyolefin resin | Hiroshi Shimizu, Hiroshi Sato, Nobuo Miura | 1981-06-23 |
| 4247650 | Expanded particulate material of polyolefin resin | Hiroshi Shimizu, Hiroshi Sato, Nobuo Miura | 1981-01-27 |