Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703863 | Optical device which detects reflected light with a push-pull method without dividing the reflected light | Masato Doi, Hironobu Narui | 1997-12-30 |
| 5664064 | Object form division method and system | Akira Maeda, Masayuki Noguchi, Taiichi Kadouno, Atsushi Suzuki, Eiji Suzuki | 1997-09-02 |