YM

Yu-Kun Ma

CT Chunghwa Picture Tubes: 1 patents #13 of 31Top 45%
Overall (2004): #79,937 of 270,089Top 30%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6674228 Multi-layer common lens arrangement for main focus lens of multi-beam electron gun Hsing-Yao Chen, Hsiang-Lin Chang, Chun-Hsien Yeh 2004-01-06