Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8698754 | Keypad for electronic device and manufacturing method thereof | Ho-Suk RHYU, Sung-Sun Park, Jae-Chul Jin | 2014-04-15 |
| 8457695 | Mobile communication terminal having fragrance member | Chang-Youn Hwang, Young-Ki Kim | 2013-06-04 |
| 7646956 | Optical waveguide sheet and manufacturing method thereof | Yong-Wook Hwao, Chang-Youn Hwang, Young-Ki Kim, Ki-Duk Jang | 2010-01-12 |
| 7414213 | Manufacturing method of keypad for mobile phone and keypad manufactured thereby | Yong-Wook Hwang, Young-Ki Kim, Hyun Jeong, Chang-Youn Hwang, Woo-seok Chin +1 more | 2008-08-19 |