Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694623 | Line of sight detecting device, and equipment comprising the device | — | 1997-12-02 |
| 5667270 | Focus detecting device | Hiroshi Matsushima | 1997-09-16 |
| RE35537 | Method and apparatus for forming color proof | Hitoshi Shimaoka, Shigeru Mizuo, Miyuki Hosoi | 1997-06-17 |
| 5634141 | Visual axis detection device capable of reducing detection errors due to variations of eyes among individuals | Akira Yamada, Yoshiaki Irie, Akihiko Nagano | 1997-05-27 |
| 5615399 | Focus detecting apparatus having photoelectric area sensors | Mamoru Miyawaki, Kenji Suzuki, Toshiki Nakayama | 1997-03-25 |