Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822686 | Lens control apparatus | Akira Hiraoka | 2004-11-23 |
| 6787457 | Method of etching and anti-reflection film using substituted hydrocarbon with halogen gas | Shusaku Yanagawa, Masatsugu Ikeda, Youichi Goto | 2004-09-07 |