Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721773 | Process for producing granular vinyl chloride polymer | Hiroshi Yoshida, Masaaki Nishina | 1988-01-26 |
| 4604454 | Method of recovering vinyl chloride resin | Masaaki Nishina, Osamu Ozaki | 1986-08-05 |
| 4474122 | Method for protecting equipment auxiliary to fluidized incinerator from corrosion | Hiroshi Hokari | 1984-10-02 |