Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6956067 | Expanded polypropylene resin bead and process of producing same | Hidehiro Sasaki, Akinobu Hira, Keiichi Hashimoto | 2005-10-18 |
| 6838488 | Production method of foamed polypropylene resin beads | Hidehiro Sasaki, Kazuya Ogiyama, Akinobu Hira, Keiichi Hashimoto, Hiroki Yanagisawa | 2005-01-04 |