Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11139493 | Method and system for controlling hydrogen purging of fuel cell | Joon Yong Lee | 2021-10-05 |
| 11018358 | Pinhole determination method and system for fuel cell | Jung Hwan Ryu | 2021-05-25 |
| 10985388 | Method and apparatus for estimating hydrogen crossover loss of fuel cell system | Jung Hwan Ryu | 2021-04-20 |
| 10978724 | Method and system for removing residual water in fuel cell stack | Chang Seok You, Sung Do Kim, Min Su Kang, Dong Hun Lee | 2021-04-13 |
| 10879547 | Control method and control system of hydrogen concentration for fuel cell | Hyeon Seok Ban, Joon Yong Lee | 2020-12-29 |
| 10818942 | Method and system for estimating hydrogen concentration of fuel cell | In Woo Jang, Joon Yong Lee | 2020-10-27 |
| 10718039 | High strength spring steel having excellent corrosion resistance | Sung Chul Cha, Hyuk Kim | 2020-07-21 |
| 10597749 | Continuous annealing apparatus | Min Woo Kang, Moon Ki Bae, Seung Hyun Hong | 2020-03-24 |
| 10566637 | Hydrogen concentration estimating method and system for fuel cell | Joon Yong Lee | 2020-02-18 |
| 10329650 | High manganese steel | Sung Chul Cha, Seong Guk Son, Seung Hyun Hong | 2019-06-25 |
| 10249896 | System and method for controlling fuel cell vehicle | Joon Yong Lee | 2019-04-02 |
| 10164272 | Pinhole determination method and system for fuel cell | Jung Hwan Ryu | 2018-12-25 |
| 10052968 | Method and system for diagnosing fuel cell stack | Sung Jin Chung, Ja Hoo Koo, Joon Yong Lee | 2018-08-21 |
| 9786930 | Fuel cell system and method for controlling the same | Joon Yong Lee | 2017-10-10 |
| 9669603 | Film for display window, method of manufacturing the same, display window having the same and method of manufacturing the same | Sung Woon Yoon, Jae Sik KIM, Il Seong, Kyo Ree Lee, Mi Ran Jeong +1 more | 2017-06-06 |
| 9537162 | Device and method for controlling cold start of fuel cell system | Joon Yong Lee | 2017-01-03 |
| 9531310 | System and method for computing motor speed and rotor position using hall sensor | Dong Hun Lee, Min Su Kang, Sung Do Kim, Joon Yong Lee, Chang Seok Ryu | 2016-12-27 |
| 9372236 | Failure determination method for motor system | Dong Hun Lee, Joon Yong Lee, Chang Seok Ryu | 2016-06-21 |
| 9337753 | System and method for cold start of vehicle | Joon Yong Lee | 2016-05-10 |
| 9007010 | System and method for calibrating offset of motor resolver | Joon Yong Lee | 2015-04-14 |
| 8958944 | Method for controlling creep torque of a vehicle | Jae Won Jung, Kyu Il Lee, Sung Jin Chung, Sung Gone Yoon | 2015-02-17 |
| 8373370 | Sensorless control method of high performance permanent magnet synchronous motor during emergency operation | Seo Ho Choi, Joon Yong Lee, Kwang Hee Nam, Jin-Seok Hong, Sung-Yoon Jung +1 more | 2013-02-12 |
| 8315752 | Apparatus and method for controlling motor position and creep of electric vehicle | Sang Uk Kwon, Seo Ho Choi, Kyu Il Lee, Joon Yong Lee | 2012-11-20 |