Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693933 | Device for dtecting the size of an original document in a document reader | Akira Takasu, Shinya Kawanishi, Keiichi Okada, Kouichi Furuta | 1997-12-02 |
| 5596444 | Optical apparatus having laser beam diameter variable according to image data | — | 1997-01-21 |