Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677819 | Magnetic disk having improved servo area for protecting equal time interval characteristics and for preventing azimuth loss | Toru Takeda | 1997-10-14 |
| 5654842 | Head displacement measuring method and apparatus and data recording/reproducing method and apparatus | Toru Takeda, Takehisa Ishida | 1997-08-05 |
| 5615191 | Disc device having eccentricity measurement and clock correction | Toru Takeda, Hideaki Ishioka, Itaru Tomisaki | 1997-03-25 |