Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6504991 | Magnetic recording apparatus, magnetic reproducing apparatus, and related methods | Seiji Higurashi | 2003-01-07 |
| 6288857 | Digital signal recording apparatus, and related method | Seiji Higurashi, Takeo Ohishi | 2001-09-11 |
| 6198585 | Digital signal recording apparatus, and related method | Seiji Higurashi, Takeo Ohishi | 2001-03-06 |
| 6191900 | Digital signal recording and reproducing apparatus and recording medium | Seiji Higurashi | 2001-02-20 |
| 6122432 | Information signal recording apparatus | Seiji Higurashi | 2000-09-19 |
| 6084737 | Magnetic playback system | Seiji Higurashi | 2000-07-04 |
| 6052246 | Method and apparatus for recording digital signals in the form of primary data plus auxiliary information | Seiji Higurashi | 2000-04-18 |