Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7280716 | Printed circuit board including waveguide and method of producing the same | Sang-Won Ha, Keun-Ho Kim, Kyoung-Up Shin, Dek-Gin Yang | 2007-10-09 |
| 7203388 | Printed circuit board including waveguide and method of producing the same | Sang-Won Ha, Keun-Ho Kim, Kyoung-Up Shin, Dek-Gin Yang | 2007-04-10 |
| 7197202 | Optical printed circuit board for long-distance signal transmission | Young Woo Kim, Young-Sang Cho, Dek-Gin Yang, Kyu-Hyok Yim | 2007-03-27 |
| 7084098 | Brown oxide pretreatment composition for cleaning copper surface and improving adhesion of polyimide surface, and method for improving adhesion of polyimide surface by applying the same to brown oxide process | Bum Young Myoung, Yang Je Lee, Dek-Gin Yang | 2006-08-01 |
| 6978058 | Multi-layer PCB and method for coupling block type multichannel optical signals | Young Woo Kim, Dek-Gin Yang, Young-Sang Cho, Kyu-Hyok Yim | 2005-12-20 |
| 6882161 | Method of measuring dielectric constant of PCB for RIMM | Young Woo Kim, Dek-Gin Yang, Young-Sang Cho, Dong Hwan Lee | 2005-04-19 |
| 6839476 | Multi-layer printed circuit board and the method for coupling optical signals between layers of multi-layer printed circuit board | Young Woo Kim, Dek-Gin Yang, Young-Sang Cho, Kyu-Hyok Yim | 2005-01-04 |