Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5359473 | Tracking device | Kouji Kaniwa, Hideo Nishijima, Toshio Nakamoto | 1994-10-25 |
| 5315457 | Magnetic recording apparatus with pilot signal recorded in successive tracks with changing pilot frequency | Tsunekazu Okada, Seiichi Hataoka | 1994-05-24 |