Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613443 | Silicon nitride ceramic substrate, silicon nitride ceramic circuit board using the substrate, and method of manufacturing the substrate | Michiyasu Komatsu, Haruhiko Yamaguchi, Hideki Yamaguchi | 2003-09-02 |
| 6569514 | Ceramic circuit board and method of manufacturing the same | Haruhiko Yamaguchi | 2003-05-27 |