Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398016 | Process for producing a resin for printing ink, and a composition comprising said resin | Minoru Homma, Noboru Okoshi, Soichi Shimoyama, Nansei Tashiro | 1983-08-09 |
| 4391640 | Process for producing oil-modified and rosin-modified phenolic resin for printing inks | Noboru Okoshi, Shoichi Shimoyama | 1983-07-05 |