Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7625677 | Half-tone stacked film, photomask-blank, photomask and fabrication method thereof | Hiroki Yoshikawa, Yukio Inazuki, Yoshinori Kinase, Satoshi Okazaki, Tadashi Saga | 2009-12-01 |
| 6509854 | DA conversion circuit | Kenji Maio | 2003-01-21 |