Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11869945 | Graphene-based TFT comprising nitrogen-doped graphene layer as active layer | Soon-Gil Yoon, Yi Han | 2024-01-09 |
| 11124870 | Transfer-free method for producing graphene thin film | Soon-Gil Yoon | 2021-09-21 |
| 10246795 | Transfer-free method for forming graphene layer | Soon-Gil Yoon | 2019-04-02 |
| 7683546 | Sulfur lamp having electrodes | — | 2010-03-23 |
| 7583029 | High temperature operation type electrodeless bulb of plasma lighting systems and plasma lighting system having the same | — | 2009-09-01 |
| 7583013 | Plasma lighting system having thin metallic film resonator | — | 2009-09-01 |
| 7541729 | Sulfur lamp having electrodes | — | 2009-06-02 |
| 7521852 | Electrodeless lighting system | Joon-Sik Choi, Yong-Seog Jeon, Hyun Jung Kim, Yun-Chul Jung, Ji-Young Lee +3 more | 2009-04-21 |
| 7321204 | Bulb structure and manufacturing method of electrodeless lighting system | Yun-Chul Jung, Joon-Sik Choi, Yong-Seog Jeon, Hyun Jung Kim, Ji-Young Lee +3 more | 2008-01-22 |
| 7276860 | Electrodeless lighting system | Joon-Sik Choi, Yong-Seog Jeon, Hyun Jung Kim, Ji-Young Lee, Yun-Chul Jung | 2007-10-02 |
| 7253555 | Electrodeless lamp system and bulb thereof | Joon-Sik Choi, Yong-Seog Jeon, Hyo-Sik Jeon, Hyun Jung Kim, Ji-Young Lee | 2007-08-07 |
| 7161303 | Plasma lighting system and bulb therefor | Joon-Sik Choi, Yong-Seog Jeon, Hyun Jung Kim, Ji-Young Lee, Yun-Chul Jung | 2007-01-09 |
| 7161304 | Electrodeless lighting system | Ji-Young Lee, Joon-Sik Choi, Yun-Chul Jung, Yong-Seog Jeon, Hyun Jung Kim | 2007-01-09 |
| 7129639 | Middle output electrodeless lighting system | Hyun Jung Kim, Joon-Sik Choi, Yun-Chul Jung, Yong-Seog Jeon, Seung-Yeup Hyun +3 more | 2006-10-31 |
| 7126282 | Electrodeless lighting system | Joon-Sik Choi, Ji-Young Lee, Hyun Jung Kim, Yong-Seog Jeon, Yun-Chul Jung +3 more | 2006-10-24 |
| 7102276 | Resonator of electrodeless lighting system | Ji-Young Lee, Hyun Jung Kim, Joon-Sik Choi, Yong-Seog Jeon, Yun-Chul Jung | 2006-09-05 |
| 7026590 | Low-output microwave, lighting system and flicker removing method using the same | Ji-Young Lee, Yong-Seog Jeon, Hyun Jung Kim, Joon-Sik Choi, Yun-Chul Jung | 2006-04-11 |
| 6979952 | Electrodeless lamp system with orthogonally disposed resonance units | Joon-Sik Choi, Yong-Seog Jeon, Hyo-Sik Jeon, Hyun Jung Kim, Ji-Young Lee | 2005-12-27 |
| 6946795 | Bulb of electrodeless lamp apparatus | Yong-Seog Jeon, Joon-Sik Choi, Hyun Jung Kim, Hyo-Sik Jeon, Ji-Young Lee | 2005-09-20 |
| 6876152 | Cooling apparatus of plasma lighting system | Yong-Seog Jeon, Joon-Sik Choi, Hyun Jung Kim, Hyo-Sik Jeon, Ji-Young Lee | 2005-04-05 |
| 6803724 | Electrodeless lamp and lamp bulb therefor | Joon-Sik Choi, Yong-Seog Jeon, Hyo-Sik Jeon, Hyun Jung Kim, Ji-Young Lee | 2004-10-12 |
| 6774571 | Electrodeless lighting system | Joon-Sik Choi, Yong-Seog Jeon, Hyo-Sik Jeon, Hyun Jung Kim, Ji-Young Lee | 2004-08-10 |
| 6774581 | Electrodeless lamp system | Joon-Sik Choi, Yong-Seog Jeon, Hyo-Sik Jeon, Hyun Jung Kim, Ji-Young Lee | 2004-08-10 |
| 6744221 | Electrodeless lighting system and bulb therefor | Joon-Sik Choi, Yong-Seog Jeon, Hyo-Sik Jeon, Hyun Jung Kim, Ji-Young Lee | 2004-06-01 |