Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6292607 | Method for determining an aging condition for an optical waveguide grating and temperature sensor | Shinji Ishikawa, Toru Iwashima, Akira Inoue, Masakazu Shigehara | 2001-09-18 |