Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858077 | Condenser-containing, ceramic multi-layer circuit board and semiconductor module and computer having the circuit board | Hiroichi Shinohara, Hideo Suzuki | 1989-08-15 |
| 4821142 | Ceramic multilayer circuit board and semiconductor module | Nobuyuki Ushifusa, Hiroichi Shinohara, Kousei Nagayama, Tasao Soga | 1989-04-11 |
| 4796077 | Electrical insulating, sintered aluminum nitride body having a high thermal conductivity and process for preparing the same | Yukio Takeda | 1989-01-03 |