Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5278262 | Polymerization apparatus and batch-wise process for producing vinyl chloride resin | Yoshio Tomishima, Kazuo Dairaku, Takekazu Maeda, Nobuki Toba, Keizo Hayashi +2 more | 1994-01-11 |
| 5169918 | Polymerization apparatus having an effective height/effective inner diameter ratio of at least 4 and a circumferential agitative diameter/effective inner ratio diameter of from 0.7 to 0.9 | Yoshio Tomishima, Kazuo Dairaku, Takekazu Maeda, Nobuki Toba, Keizo Hayashi +2 more | 1992-12-08 |