Tzu-Ching Yang has been granted 9 US patents while listed as an inventor at Epistar . The first was granted in 2011 and the most recent in November 2024. Tzu-Ching Yang ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Tzu-Ching Yang in Taoyuan, CA, TW.
Patents per Year Patents granted per year, 2011 to 2024 Bar chart with a peak of 2 patents in 2011. peak 2 2011: 2 patents 2011 2012: 1 patents 2012 2013: 1 patents 2013 2014: 1 patents 2014 2015: 1 patents 2015 2017: 1 patents 2017 2023: 1 patents 2023 2024: 1 patents 2024
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12135350 Electronic component testing system and time certification method Shih-Chao Lin 2024-11-05
11835819 Reflective sheet, backlight module, and display device Ya-Yun HSIEH , Pei-Ling Kao , Pei-Fen HOU 2023-12-05
9584052 Driving system, apparatus and method for spindle motor Ming-Kuang Chang , Chih-Lung Tai , Je-Shen Hu , Chi-Jui Lee 2017-02-28
9068264 Epitaxial growth systems Chung-Ying CHANG 2015-06-30
D704155 Wafer carrier Chung-Ying CHANG , Chia-Sheng Chang 2014-05-06
D674759 Wafer carrier Chung-Ying CHANG , Chia-Sheng Chang 2013-01-22
8254218 Recording method and apparatus for optical disk drive Chuan-Li Wang , Ming-Tsung Huang , Shih-Hao Ko , Kuo-Jung Lan 2012-08-28
8077564 Method for improving readability of an optical disc, and associated optical storage apparatus Ming-Tsang Wu , Hao-Hui Yin , Chih-Ching Yu , Ya-Fang Nien , Ying-Feng Huang +1 more 2011-12-13
7969043 Power management systems with multiple power sources Eftimie Caraghiorghiopol , Constantin Spiridon 2011-06-28
$1,653,000