Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10447188 | Brushless direct current electric motor driving control method and system of electrical water pump | Yeon Ho Kim, Byoung Hoon Choi, Jae Shin Yi, Hyeong Geun Song, Geun Oh Dong | 2019-10-15 |
| 9882517 | Method and system for controlling motor | Jae Shin Yi, Byoung Hoon Choi, Yeon Ho Kim | 2018-01-30 |
| 9080665 | Failsafe device and control method for vehicle | Byoung Hoon Choi, Jae Shin Yi, Seung Ki Kong, Hak Sung Lee | 2015-07-14 |
| 7266441 | System and method for controlling idling stop of hybrid electric vehicle | — | 2007-09-04 |
| 6499406 | Blasting apparatus for forming horizontal underground cavities and blasting method using the same | — | 2002-12-31 |
| 6431075 | Center-cut method for tunnel excavation utilizing large unloaded blast holes and a circular pre-split | Han Uk Lim, Young Dong Cho | 2002-08-13 |