Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9775509 | Automatic optometry analysis system for children | Dan Lai Fung, Zhi Li | 2017-10-03 |
| 9581989 | Control device of machine tool which estimates overheating of motor | Tadashi Okita | 2017-02-28 |