Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132947 | Combined memory medium, drive apparatus and method therefor and playback apparatus therefor | Keiichi Kameda, Kazutsugu Kobayashi, Hiroyuki Iitsuka | 1992-07-21 |
| 4695907 | Rotary head deflection apparatus | Toshio Inaji, Hiroshi Okamoto | 1987-09-22 |
| 4608524 | Output circuit and brushless motor using the same | — | 1986-08-26 |
| 4535276 | Output circuit and brushless motor using the same | — | 1985-08-13 |
| 4484235 | Phase control circuit and magnetic reproducing apparatus using the same | Masashi Urayama, Yoshiaki Igarashi | 1984-11-20 |
| 4395682 | Differential output circuit | Tetsuo Maeda, Yoshiaki Igarashi | 1983-07-26 |
| 4393422 | Device for driving magnetic tape | Masashi Urayama, Hiroshi Okamoto, Yoshiaki Igarashi | 1983-07-12 |
| 4344023 | Drive system for a brushless DC motor | Yoshiaki Igarashi, Tetsuo Maeda | 1982-08-10 |