Issued Patents 2003
Showing 1–2 of 2 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 | Chao Xu, Morito Akiyama, Kazuhiro Nonaka | 2003-09-30 |
| 6555886 | Device having two perovskite crystalline layers that shows hysteresis and piezoelectric behavior | Chaonan Xu, Yun Liu, Morito Akiyama | 2003-04-29 |