Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4578787 | Record disc reproducing apparatus | Keizo Shimizu, Shimpei Otsu, Toshio Fujimura, Yoshisada Taniguchi | 1986-03-25 |
| 4476556 | Apparatus for reproducing information from a record disc | Yoshisada Taniguchi, Shinpei Otsu, Toshio Fujimura, Keizo Shimizu | 1984-10-09 |