Sang-Rok CHA

Follow

Person

Cheongju-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Power supply circuit for liquid crystal display device that changes...
- Patent number 8,854,354
- Issue date Oct 7, 2014
- Silicon Works Co., Ltd.
- Yong Sung Ahn
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Boost converter using frequency-varying oscillation signal for liqu...
- Patent number 8,633,923
- Issue date Jan 21, 2014
- Silicon Works Co., Ltd.
- Yong-Sung Ahn
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER SUPPLY CIRCUIT FOR LIQUID CRYSTAL DISPLAY DEVICE
- Publication number 20120044227
- Publication date Feb 23, 2012
- SILICON WORKS CO., LTD.
- Yong-Sung Ahn
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
BOOST CONVERTER FOR LIQUID CRYSTAL DISPLAY
- Publication number 20110273433
- Publication date Nov 10, 2011
- SILICON WORKS CO., LTD.
- Yong-Sung AHN
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS