Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4682244 | Optical recording device | — | 1987-07-21 |
| 4545674 | Original placing stand device | Toshikatsu Takahashi | 1985-10-08 |
| 4464046 | Copying machine capable of continuously varying magnification | Yukio Kanazawa, Toshikatsu Takahashi | 1984-08-07 |