Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321557 | Magnetic recording and reproducing apparatus having multiple magnetic heads | Masafumi Shimotashiro, Takeshi Inoue, Hiroshi Okamoto, Masaru Higashionji, Tatsushi Bannai +1 more | 1994-06-14 |
| 5313346 | Tracking error detection system having at least two magnetic heads with opposite azimuths and circuitry for detecting tracking error by determining a phase difference of output signals from all circuits based on signals produced by the magnetic heads | Masafumi Shimotashiro, Hiroshi Okamoto, Souichiro Fujioka | 1994-05-17 |