Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4403236 | Boundary layer type semiconducting ceramic capacitors with high capacitance | Haruhumi Mandai, Masami Yamaguchi | 1983-09-06 |
| 4380559 | Method for producing boundary layer semiconductor ceramic capacitors | Haruhumi Mandai, Yoshiaki Kohno, Masami Yamaguchi | 1983-04-19 |
| 4323617 | Semiconductor ceramic composition for boundary layer capacitors | Harufumi Mandai | 1982-04-06 |