Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6699421 | Method for forming foamed polypropylene resin sheet and foamed formed article | Ken Shimizu, Hiroyuki Maehara | 2004-03-02 |
| 6235845 | Olefin (co)polymer composition | Akira Yamauchi, Jun Saito, Hiroyuki Maehara | 2001-05-22 |