Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666196 | Optical detection apparatus for detecting information relating to relative displacement of an object on whch a diffraction grating is formed | Satoshi Ishii, Hiroshi Kondo, Yasushi Kaneda | 1997-09-09 |