Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147933 | Polypropylene resin composition | Junji Koizumi | 1992-09-15 |
| 5082889 | Reinforced polypropylene composition | Junji Koizumi | 1992-01-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147933 | Polypropylene resin composition | Junji Koizumi | 1992-09-15 |
| 5082889 | Reinforced polypropylene composition | Junji Koizumi | 1992-01-21 |