Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9958498 | Test handler and circulation method of test trays in test handler | Yun-Sung Na, Jong Ki Noh | 2018-05-01 |
| 8570058 | Carrier board transfer system for handler that supports testing of electronic devices and method for transferring carrier board in chamber of handler | Yun-Sung Na, In-Gu Jeon, Dong Hyun Yo, Hoyung-Su Kim | 2013-10-29 |