Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866648 | Digital filter | — | 1989-09-12 |
| 4861941 | Shielding device | Kazuhiko Kubo, Susumu Saitou, Hiroyuki Nagai | 1989-08-29 |
| 4835492 | Voltage controlled oscillator having constant tuning bias voltage | Hideyuki Ikuhara, Kazuhiko Kubo, Hiroyuki Nagai, Tetsuo Kutsuki | 1989-05-30 |
| 4817195 | Channel selection apparatus having automatic frequency compensation for transmission frequency error | Kazuhiko Kubo, Minoru Miyata, Hideyuki Ikuhara, Hiroyuki Nagai, Tadashi Yamada | 1989-03-28 |
| 4811254 | Displacement detector for an encoder | Kenzaburou Iijima, Yuoshinori Hayashi, Terumoto Nonaka | 1989-03-07 |
| 4806876 | High frequency amplifier circuit | Seiji Sakashita, Kiyotake Fukui, Hiroyuki Nagai | 1989-02-21 |
| 4797638 | Oscillator including a transistor used both as constant current source and amplifier | Kazuhiko Kubo, Hiroyuki Nagai | 1989-01-10 |