Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5508986 | Information recording, reproducing apparatus having operation mode switching means | Yoshimitsu Nakamura, Isao Obata, Takaharu Ai, Shoji Hasegawa, Seizou Tsuji | 1996-04-16 |
| 5379276 | Data information recording/reproducing apparatus which minimizes record failures | Eiichi Igami, Shoji Hasegawa, Isao Obata | 1995-01-03 |