Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10625384 | Spindle apparatus and operating method thereof | Jae Hyeon Park | 2020-04-21 |
| 9415474 | Spindle jig and auto pallet-changeable machining center having the same | Nam-Doo Lee, Heedong Son | 2016-08-16 |
| 9132465 | System for manufacturing membrane electrode assembly of fuel cell stack | Hee Dong Son | 2015-09-15 |