Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9257706 | Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same | Dai Gil Lee, Ha Na Yu, Sae Hoon Kim, Jung Do Suh, Byung Ki Ahn | 2016-02-09 |
| 9147889 | Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same | Dai Gil Lee, Ha Na Yu, Byoung-Chul Kim, Bu Gi Kim, Jung Do Suh | 2015-09-29 |
| 8956767 | Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same | Dai Gil Lee, Ha Na Yu, Sae Hoon Kim, Jung Do Suh, Byung Ki Ahn | 2015-02-17 |
| 8802330 | Method for manufacturing composite separator for fuel cell and composite separator manufactured by the same | Dai Gil Lee, Ha Na Yu, Byoung-Chul Kim, Bu Gi Kim, Jung Do Suh +2 more | 2014-08-12 |
| 8748055 | Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same | Dai Gil Lee, Ha Na Yu, Byoung-Chul Kim, Bu Gi Kim, Jung Do Suh | 2014-06-10 |
| 6039146 | Method of manufacturing speaker diaphragm | Hong J Byun, Hwi Chul Park | 2000-03-21 |