Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870659 | FSK demodulation circuit | Yasuyuki Oishi, Takeshi Takano, Takaharu Nakamura, Yasunobu Watanabe | 1989-09-26 |
| 4796077 | Electrical insulating, sintered aluminum nitride body having a high thermal conductivity and process for preparing the same | Satoru Ogihara | 1989-01-03 |