Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328143 | Aqueous coating composition | Minao Izumi, Tamotsu Sobata, Keizou Ishii | 1982-05-04 |
| 4309327 | Polymeric resin from ethylenic amino, sulfonic monomers | Ryuzo Mizuguchi, Keizou Ishii, Tamotu Yoshioka | 1982-01-05 |