Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11846262 | Ignition coil control system and method | Kiseon Sim, Dongwon Jung, Jin Oh Song, Soo Hyung Woo | 2023-12-19 |
| 11784466 | Multi-ignition coil control system | Soo Hyung Woo, Kiseon Sim | 2023-10-10 |
| 11560870 | Ignition coil control system and method thereof | Kiseon Sim, Dongwon Jung, Jin Oh Song, Soo Hyung Woo | 2023-01-24 |
| 11378055 | Method of controlling ignition coil | Kiseon Sim, Dongwon Jung, Jin Oh Song, Soo Hyung Woo | 2022-07-05 |
| 11255302 | Intake system for vehicle | Il Suk Yang | 2022-02-22 |
| 10794308 | Apparatus and method for controlling deactivation of cylinders in engine | Ki Seon Sim, Gee Wook Shin, Myung-Sik Choi, Young Hong Kwak, Kyoung Seok Park | 2020-10-06 |
| 10526962 | Variable compression ratio apparatus | Myungsik Choi, Gyu Han Hwang | 2020-01-07 |
| 10408255 | Variable compression ratio apparatus | Myungsik Choi | 2019-09-10 |
| 10337364 | One-way clutch type variable valve timing device and engine system having the same | — | 2019-07-02 |
| 10260410 | Variable compression ratio device and control method thereof | Myungsik Choi | 2019-04-16 |
| 10260438 | Cylinder de-activation control method and cylinder de-activation system | Gee Wook Shin | 2019-04-16 |
| 10196973 | Variable compression ratio device | — | 2019-02-05 |
| 10161440 | Connecting rod with mechanism for varying compression ratio | — | 2018-12-25 |
| 10087829 | Variable compression ratio device | Myungsik Choi, Gyu Han Hwang | 2018-10-02 |
| 10006482 | Variable compression ratio apparatus | Myungsik Choi | 2018-06-26 |
| 9869273 | Vane-rotor type Stirling engine | — | 2018-01-16 |
| 9816409 | Variable valve lift apparatus | Myungsik Choi, Gee Wook Shin, Gyu Han Hwang, Young Hong Kwak, Yoonsik Woo | 2017-11-14 |
| 9689282 | Variable valve lift apparatus | Myungsik Choi, Young Hong Kwak, Gee Wook Shin | 2017-06-27 |
| 9587531 | Variable valve lift apparatus | Myungsik Choi, Young Hong Kwak | 2017-03-07 |
| 9556763 | Variable valve lift apparatus | Young Hong Kwak, Gyu Han Hwang, Jin Hwa Kim, Gee Wook Shin, Myungsik Choi +1 more | 2017-01-31 |
| 9470144 | Variable compression ratio engine | Myungsik Choi | 2016-10-18 |
| 9447739 | Variable compression ratio engine | Eun Ho Lee, Young Hong Kwak, Myungsik Choi, Yoonsik Woo | 2016-09-20 |
| 9441539 | Variable compression ratio apparatus | Myungsik Choi | 2016-09-13 |
| 9399932 | Variable valve device that varies lift amount of valve | Young Hong Kwak, Gyu Han Hwang, Jin Kook Kong, Gee Wook Shin, Myungsik Choi | 2016-07-26 |
| 8752415 | Method and system for measuring engine oil deterioration | Ki Hwan Oh, Keun Woo Chung, Young-Wun Kim | 2014-06-17 |