Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9663447 | Asymmetric butadiene-based charge transport compound, electrophotographic photoreceptor containing same, and image forming apparatus | Akihiro Kondo, Satoshi Katayama, Won-joon Son, Chan Hee Lee, Sang-heum HWANG | 2017-05-30 |
| 9660207 | Organic solar cell | Soo-Ghang Ihn, Jong-Hwan Park, Yeon Ji Chung | 2017-05-23 |
| 8636947 | Metal separator for fuel cell and surface treatment method thereof | Yoo Chang Yang, Suk Min Baeck, Seung Gyun Ahn | 2014-01-28 |
| 7914948 | Metallic bipolar plate for fuel cell and method for forming surface layer of the same | In Woong Lyo, Jeong Uk An, Seung Gyun Ahn, Yoo Chang Yang, Sae Hoon Kim +1 more | 2011-03-29 |
| 7010218 | Digital magnetic recording/reproducing device for recording/reproducing plural types of audio data, and recording/reproducing method therefore | — | 2006-03-07 |