Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6710332 | System for detecting rotation angles of an diffracting portion using a absorption cell sealed with a plurality of kinds of gases and linear interpolation | Hideya Joukawa | 2004-03-23 |
| 5828061 | Apparatus for detecting a rotation angle of a diffraction grating | — | 1998-10-27 |