Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849133 | PTC compositions | Shingo Yoshida, Takahisa Akatsuka, Jiro Toyama | 1989-07-18 |
| 4839406 | Fluidity controlling agent for paints | Osamu Nagura, Yoshimasa Kamikuri, Norikazu Takizuka | 1989-06-13 |