Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824813 | Dielectric ceramic composition | Susumu Nishigaki, Hiroshi Kato, Toshio Nonomura | 1989-04-25 |
| 4795670 | Multilayer ceramic substrate with circuit patterns | Susumu Nishigaki, Junzo Fukuda, Hiroshi Kawabe | 1989-01-03 |