Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4611248 | Rotary recording medium and reproducing apparatus therefor | Hisayoshi Yamada, Kazuhiro Hosono, Masaki Sakurai, Ryozo Abe, Kenji Yoshihara | 1986-09-09 |
| 4486791 | Apparatus for optically reproducing signals recorded on a rotating recording medium | Yoshiyo Wada, Hisao Kinjo, Ichiro Ueno, Kazuo Tatsuguchi, Juichi Shikunami | 1984-12-04 |