Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6049182 | Motor speed control device | Masaji Nakatani, Mitsunobu Yoshida | 2000-04-11 |
| 6031966 | Motor speed control device | Masaji Nakatani, Mitsunobu Yoshida | 2000-02-29 |
| 5920163 | Phase detecting circuit of brushless motor and magnetic recording and reproducing apparatus using the same | Hiroshi Tatsumi | 1999-07-06 |
| 5834761 | Image input apparatus having a spatial filter controller | Hideo Okada, Masayuki Nishikawa, Tohru Okuda, Tetsuo Iwaki, Yoshinori Kinai | 1998-11-10 |
| 5668746 | Reproduced waveform equalization circuit | Tetsuo Iwaki, Toshiaki Harada | 1997-09-16 |
| 5517369 | Multi-track magnetic signal reproducing apparatus | Hitoshi Takeuchi, Eiji Yamada, Tetsuo Iwaki | 1996-05-14 |
| 5355392 | Digital data detector for reducing errors due to frequency variations | Hitoshi Takeuchi | 1994-10-11 |
| 5262908 | Tracking control device for magnetic recording/reproducing apparatus | Tadashi Iwamatsu, Tohru Okuda | 1993-11-16 |
| 5173815 | Recording position compensation circuit for use in digital information recording-reproduction apparatus | Tetsuo Iwaki, Hidetaka Mizumaki | 1992-12-22 |
| 4812987 | Wave shaping circuit | Taizo Sasada, Tetsuo Iwaki, Katsubumi Koyanagi | 1989-03-14 |