Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229891 | Tracking control system using single frequency pilot signal | Katsuji Yoshimura, Koji Takahashi, Kenichi Nagasawa, Shinichi Yamashita, Motokazu Kashida | 1993-07-20 |
| 5091897 | Magneto-optical recording apparatus having means for delaying an input signal for preventing bit shift | Shunpei Kimura, Yasuyuki Miyaoka | 1992-02-25 |
| 5010424 | Recording apparatus for an information signal with a plural kinds of pilot signals using a plurality of heads | Masahide Hasegawa, Hidetoshi Matsuoka, Noritsugu Hirata | 1991-04-23 |
| 5004965 | Brushless motor with torque compensation | Hiroyuki Takimoto | 1991-04-02 |
| 4951162 | Tracking control system with pilot signal phase setting circuitry | Katsuji Yoshimura, Koji Takahashi, Kenichi Nagasawa, Shinichi Yamashita, Motokazu Kashida | 1990-08-21 |
| 4905108 | Rotary head type reproducing apparatus with tracking control function | — | 1990-02-27 |
| 4897739 | Multi-channel recording apparatus using a plurality of heads in turn | Masahide Hasegawa, Hidetoshi Matsuoka, Noritsugu Hirata | 1990-01-30 |
| 4879609 | Rotary head type recording apparatus having an erasing function based on recording mode | Susumu Kozuki, Koji Takahashi, Keiji Satoh, Kenichi Nagasawa, Hiroo Edakubo | 1989-11-07 |
| 4843491 | Recording and reproducing apparatus with track pitch detection | — | 1989-06-27 |
| 4825307 | Information signal recording apparatus | Hiroyuki Takimoto, Keiji Satoh, Koji Takahashi, Hiroo Edakubo | 1989-04-25 |
| 4802031 | Tracking control using signals reproduced by erase head | Kenichi Nagasawa, Hiroyuki Takimoto, Hiroo Edakubo, Susumu Kozuki, Keiji Satoh | 1989-01-31 |
| 4785360 | Recording and reproducing apparatus having tracking control responsive to erase head scanning | Susumu Kozuki, Hiroyuki Takimoto, Hiroo Edakubo, Kenichi Nagasawa, Keiji Satoh | 1988-11-15 |