Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187245 | Method of addition of polymerization initiator | Tatsumi Nakamura | 1993-02-16 |
| 4826935 | Process for gas phase polymerization of vinyl chloride | Michio Saito | 1989-05-02 |
| 4740571 | Process for gas phase polymerization of vinyl chloride | Michio Saito | 1988-04-26 |
| 4283518 | Process for manufacturing a petroleum resin | Toru Iwashita, Koji Tanaka | 1981-08-11 |