Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6628375 | Method of and a system for measuring a stress or a stress distribution, using a stress luminescent material | Morito Akiyama, Kazuhiro Nonaka, Tadahiko Watanabe | 2003-09-30 |