Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5349049 | Method of production of polyvinyl chloride resin for paste processing | Osamu Ozaki | 1994-09-20 |
| 4803260 | Recovery of vinyl chloride resin with aid of screen | Junsei Kawahuti | 1989-02-07 |
| 4721773 | Process for producing granular vinyl chloride polymer | Hiroshi Yoshida, Shiro Imaizumi | 1988-01-26 |
| 4604454 | Method of recovering vinyl chloride resin | Shiro Imaizumi, Osamu Ozaki | 1986-08-05 |