Certifications & patents
Documented evidence of our technical expertise.
Certification records
Registered patents 17
| No. | Patent title | Registration number |
|---|---|---|
| 01 | Induction heat treatment apparatus and method for rocker arm shafts | 100597237 |
| 02 | Induction heat treatment apparatus for pitch rack guides | 101284843 |
| 03 | Induction heat treatment method for pitch rack guides | 101265275 |
| 04 | Straightening apparatus for induction-treated workpieces | 101439511 |
| 05 | Heat treatment apparatus and method for armature shafts | 101551884 |
| 06 | Automated induction treatment with integrated eddy current testing | 101798596 |
| 07 | Induction heat treatment apparatus for shafts | 10-2065757 |
| 08 | Shaft induction treatment apparatus with malfunction prevention | 10-2080575 |
| 09 | Automated induction heat treatment method for ball studs | 10-2285938 |
| 10 | Automated induction heat treatment apparatus for ball studs | 10-2285970 |
| 11 | Induction heat treatment apparatus for crankshafts | 10-2343809 |
| 12 | Induction heat treatment system for differential cases | 10-2384942 |
| 13 | Underwater induction heat treatment apparatus for hub reduction | 10-2428390 |
| 14 | Induction treatment system for inner and outer surfaces of cup differential cases | 10-2430293 |
| 15 | Induction treatment method for inner and outer surfaces of cup differential cases | 10-2430294 |
| 16 | Induction heat treatment system for electric vehicle rotor shafts | 10-2439749 |
| 17 | Induction heat treatment apparatus for stator shafts | 10-2439735 |
Patents 11, 12, 14, 15 and 17 are jointly held with Tongmyong University.