Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879674 | Input circuit for a digital phase locked loop | Kenzaburou Iijima | 1989-11-07 |
| 4855740 | Keyboard | Toshihiro Muramatsu, Kenzaburou Iijima | 1989-08-08 |
| 4847879 | Frequency sensing and control circuit | Kenzaburou Iijima, Makoto Suzuki, Atsushi Uchiyama | 1989-07-11 |
| 4806860 | Overlapped magnetoresistive displacement detecting transducers having closely spaced longitudinal centers | Kenzaburou Iijima, Terumoto Nonaka, Katsuyuki Yokoi, Seiya Nishimura | 1989-02-21 |