Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4259225 | Colored polyvinyl chloride paste composition prepared using premixture of pigment and aromatic carboxylic acid ester | Isamu Saito, Koshiki Aoyagi, Masatoshi Okumura, Naoki Shibahara | 1981-03-31 |