Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819962 | Notebook provided with pages containing a window-like aperture | — | 1989-04-11 |
| 4818847 | Apparatus for optically reading printed information | Masahiro Hara, Atutoshi Okamoto, Toshiyasu Sakai, Tadao Oshima, Hiroshi Yamamoto | 1989-04-04 |
| 4818856 | Optical information reading apparatus | Takeshi Matsushima, Atsutoshi Okamoto, Tadao Ohshima, Mutsushi Yamashita, Hiroshi Yamamoto | 1989-04-04 |