Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6709880 | Semiconductor device and a manufacturing method of the same | Jiro Yamamoto, Fumio Murai, Tosiyuki Yamamoto | 2004-03-23 |
| 6686099 | Method of manufacturing a photomask | Toshihiko Tanaka, Norio Hasegawa | 2004-02-03 |
| 6677107 | Method for manufacturing semiconductor integrated circuit device, optical mask used therefor, method for manufacturing the same, and mask blanks used therefor | Norio Hasegawa, Toshihiko Tanaka | 2004-01-13 |