Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948767 | Ferroelectric ceramic material | Yoshihisa Ushida, Hiroshi Mase | 1990-08-14 |
| 4940681 | Ferroelectric ceramic material | Yoshihisa Ushida, Hiroshi Mase | 1990-07-10 |
| 4830996 | Ferroelectric ceramics | Yoshihisa Ushida, Takao Ohno | 1989-05-16 |