Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9233686 | Method and system for setting learning period of engine clutch of hybrid vehicle | Joonyoung Park | 2016-01-12 |
| 8687266 | Display device driven by electric field | Byung-Uk Kim, Mun-Pyo Hong, Hong Jun Choi, Byung-Seong Bae | 2014-04-01 |
| 8289249 | Light blocking display device of electric field driving type | — | 2012-10-16 |
| 7663796 | Electric-field-driving reflective display apparatus | — | 2010-02-16 |
| 7642376 | Methods and devices for preparing biuret and cyanuric acid | Min Seung Shin, Hoon Suk Lee | 2010-01-05 |
| 7465828 | Method for preparing hydrazodicarbonamide using biuret as starting material | Sang Jin Han | 2008-12-16 |
| 7422727 | Apparatus for preparing hydrazo-dicarbonamide using urea as starting material | Sang Jin Han | 2008-09-09 |
| 6635785 | Method for synthesizing hydrazodicarbonamide | Sang Jin Han | 2003-10-21 |