Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262138 | Extrusion-foamed board of resin blend comprising modified polypropylene resin and polystyrene resin | Haruo Tomita | 2001-07-17 |
| 6077878 | Foam made from modified polypropylene resin and process for the production thereof | Tetsuo Okura, Mitsuharu Kourogi, Yoshifumi Fukui, Hesun Kim, Haruo Tomita +1 more | 2000-06-20 |
| 5902858 | Modified polypropylene resin, foam made thereof and processes for the preparation of them | Tetsuo Okura, Haruo Tomita | 1999-05-11 |
| 5367016 | Reinforced resin composition | Katsutoyo Fujita, Hayato Nishimura, Shigemi Matsumoto, Satoshi Tonoki | 1994-11-22 |