Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336352 | Blend of three ethylene polymers | Hisaya Sakurai, Yoshihiko Katayama, Tadashi Ikegami | 1982-06-22 |
| 4230831 | Polyethylene blend composition | Hisaya Sakurai, Yoshihiko Katayama, Tadashi Ikegami, Kisoo Moriguchi | 1980-10-28 |