Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7981960 | Thermoplastic resin composition having improved impact resistance, color development and good flame-retardance | Sung Hee Ahn, Se Bum Son, Sung Duk Hwang | 2011-07-19 |
| 7977421 | Brominated diphenyl ethane mixtures and resin compositions including the same | Sung Hee Ahn, Se Bum Son, Sung Duk Hwang, Seong Ho Kong, Hye Jin Lee +1 more | 2011-07-12 |
| 7964661 | Flame resistant thermoplastic resin composition having improved impact resistance and chemical resistance | Se Bum Son, Sung Hee Ahn, Sung Duk Hwang | 2011-06-21 |
| 7960071 | Separator for fuel cell using a metal plate coated with titanium nitride, method for manufacturing the same, and polymer electrolyte membrane fuel cell comprising the separator | Eun Ae Cho, Sung Goon KANG, Ui Sik Jeon, Heung Yong Ha, Seong Ahn Hong +4 more | 2011-06-14 |
| 7790327 | Reinfored matrix for molten carbonate fuel cell and method for preparing the same | Hyung Chul Ham, Seong Ahn Hong, Tae Hoon Lim, Suk Woo Nam, Sung Pil Yoon +7 more | 2010-09-07 |
| 7790220 | Method to manufacture composite polymer electrolyte membranes coated with inorganic thin films for fuel cells | Heung Yong Ha, Soon Jong Kwak, Daejin Kim, Juno Shim, Seong Ahn Hong +2 more | 2010-09-07 |
| 7740670 | Catalyst for partial oxidation reforming of fuel and fuel reforming apparatus and method using the catalyst | Suk Woo Nam, Sang-Jun Kong, Seong Ahn Hong, Tae Hoon Lim, Heung Yong Ha +3 more | 2010-06-22 |
| 7678470 | Reinforced matrix for molten carbonate fuel cell using porous aluminum support and method for preparing the molten carbonate fuel cell comprising the reinforced matrix | Sung Pil Yoon, Seong Ahn Hong, Tae Hoon Lim, Suk Woo Nam, Heung Yong Ha +3 more | 2010-03-16 |
| 7402294 | Catalyst for partial oxidation reforming of fuel and fuel reforming apparatus and method using the catalyst | Suk Woo Nam, Sang-Jun Kong, Seong Ahn Hong, Tae Hoon Lim, Heung Yong Ha +3 more | 2008-07-22 |
| 7378805 | Single-stage digital power converter for driving LEDs | Madhu Rayabhari | 2008-05-27 |
| 7271127 | Catalyst for partial oxidation reforming of fuel and fuel reforming apparatus and method using the catalyst | Suk Woo Nam, Sang-Jun Kong, Seong Ahn Hong, Tae Hoon Lim, Heung Yong Ha +3 more | 2007-09-18 |
| 7239531 | Resonant lossless circuit for providing a low operating voltage in power converter | — | 2007-07-03 |
| 7141329 | Electrode having microstructure of extended triple phase boundary by porous ion conductive ceria film coating and method to manufacture the said electrode | Seong Ahn Hong, Tae Hoon Lim, Suk Woo Nam, Heung Yong Ha, Sung Pil Yoon +1 more | 2006-11-28 |
| 7142439 | Zero-voltage-switching single-switched resonant DC link with minimized conduction loss | — | 2006-11-28 |
| 7098605 | Full digital dimming ballast for a fluorescent lamp | — | 2006-08-29 |
| 7057907 | Power converter having improved control | — | 2006-06-06 |
| 7029559 | Proton exchange composite membranes, composite solutions, and method for manufacturing and fuel cell using the same | Jongok Won, Yong Soo Kang, Heung Yong Ha, Sangwook Choi, Jee Won Choun +1 more | 2006-04-18 |
| 6953631 | Method and apparatus for operating polymer electrolyte membrane fuel cell below the freezing point of water | Jae Jun Ko, Heung Yong Ha, Seong Ahn Hong, Tae Won Lim, Ki Chun Lee +2 more | 2005-10-11 |
| 6893481 | Method for manufacturing Ni-Al alloy powders for fuel cells using aluminum chloride | Suk Woo Nam, Anatoli Maganiouk, Seong Ahn Hong, Tae Hoon Lim, Heung Yong Ha +3 more | 2005-05-17 |
| 6824913 | Anode for molten carbonate fuel cell coated with porous ceramic films | Seong Ahn Hong, Tae Hoon Lim, Suk Woo Nam, Heung Yong Ha, Sung Pil Yoon +2 more | 2004-11-30 |
| 6544676 | Internal reforming molten carbonate fuel cell with membrane for intercepting carbonate vapor | Tae Hoon Lim, Heung Yong Ha, Suk Woo Nam, Seong Ahn Hong, Hyeung Dae Moon +1 more | 2003-04-08 |
| 6296972 | Method for preparing LICOO2-coated NiO cathodes for molten carbon fuel cell | Seong Ahn Hong, Tae Hoon Lim, Suk Woo Nam, Hyung Joon Choi, Heung Yong Ha +1 more | 2001-10-02 |
| 6191958 | Horizontal deflection apparatus | — | 2001-02-20 |
| 6153257 | Process for preparing a cathode containing alkaline earth metal oxides for molten carbonate fuel cells | Seong Ahn Hong, Tae Hoon Lim, Suk Woo Nam, Hyung Joon Choi | 2000-11-28 |