Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828624 | Nonvolatile semiconductor memory device covered with insulating film which is hard for an oxidizing agent to pass therethrough | Akira Goda, Riichiro Shirota, Kazuhiro Shimizu, Hiroaki Hazama, Seiichi Aritome +1 more | 2004-12-07 |
| 6828627 | Semiconductor device | Akira Goda, Kazuhiro Shimizu, Riichiro Shirota, Norihisa Arai, Naoki Koido +3 more | 2004-12-07 |
| 6828648 | Semiconductor device and method of manufacturing the same | Naoki Koido, Riichiro Shirota | 2004-12-07 |
| 6747311 | Nonvolatile semiconductor memory device and method for manufacturing the same | Akira Goda, Riichiro Shirota, Kazuhiro Shimizu, Hiroaki Hazama, Seiichi Aritome +1 more | 2004-06-08 |
| 6703669 | Semiconductor device having serially connected memory cell transistors provided between two current terminals | Akira Goda, Kazuhiro Shimizu, Riichiro Shirota, Norihisa Arai, Naoki Koido +3 more | 2004-03-09 |