Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659534 | Apparatus for reproducing optical information contained disks of various recording densities | Hitoshi Terasaki, Yoichi Tsuchiya, Shuichi Ichiura | 1997-08-19 |
| 5586095 | Ultra-resolving optical pickup device having an optical detector receiving an unfiltered reflected beam | Shuichi Ichiura | 1996-12-17 |
| 5477527 | High density optical disc and optical disc player | Yoichi Tsuchiya, Hitoshi Terasaki, Shuichi Ichiura, Toshio Ito, Yasuyuki Kano +2 more | 1995-12-19 |
| 5440535 | Method of counting tracks on disk and track counter circuit therefor | Naoyuki Takagi | 1995-08-08 |