Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733930 | Photomask blank, photomask and method of manufacture | Tsutomu Shinagawa, Tamotsu Maruyama, Hideo Kaneko, Mikio Kojima, Satoshi Okazaki | 2004-05-11 |
| 6727027 | Photomask blank and photomask | Tetsushi Tsukamoto, Hideo Kaneko, Tamotsu Maruyama, Tsutomu Shinagawa, Satoshi Okazaki | 2004-04-27 |