Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888216 | Copper powder for electroconductive paints and process for production thereof | Hirohisa Senzaki, Yoshio Sohama | 1989-12-19 |
| 4833033 | Resin coated copper powder for electroconductive paints | Hirohisa Senzaki, Yoshio Sohama | 1989-05-23 |