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Patent applications and USPTO patent grants for Cha; Kwang-Hwan.The latest application filed is for "input device with wireless headset function for portable terminal".
Patent | Date |
---|---|
Input device with wireless headset function for portable terminal Grant 9,397,716 - Cha , et al. July 19, 2 | 2016-07-19 |
Input Device With Wireless Headset Function For Portable Terminal App 20140038525 - CHA; Kwang-Hwan ;   et al. | 2014-02-06 |
Antenna assembly for portable terminal Grant 7,609,214 - Cha , et al. October 27, 2 | 2009-10-27 |
Antenna Assembly For Portable Terminal App 20080117109 - CHA; Kwang-Hwan ;   et al. | 2008-05-22 |
Planar antenna for wireless communication device and portable computer using the same Grant 7,199,756 - Cha , et al. April 3, 2 | 2007-04-03 |
Detachable antenna device for portable terminal App 20060164323 - Cha; Kwang-Hwan | 2006-07-27 |
Keyboard of a personal digital assistant Grant 6,976,799 - Kim , et al. December 20, 2 | 2005-12-20 |
Planar antenna for wireless communication device and portable computer using the same App 20040097270 - Cha, Kwang-Hwan ;   et al. | 2004-05-20 |
Keyboard of a personal digital assistant App 20040005184 - Kim, Young-ki ;   et al. | 2004-01-08 |
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