Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836444 | Semiconductor memory device capable of realizing a chip with high operation reliability and high yield | Hiroshi Nakamura, Ken Takeuchi, Hideko Oodaira, Kenichi Imamiya, Kazuhito Narita +1 more | 2004-12-28 |
| 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, Hirohisa Iizuka +1 more | 2004-12-07 |
| 6828627 | Semiconductor device | Akira Goda, Kazuhiro Shimizu, Riichiro Shirota, Norihisa Arai, Naoki Koido +3 more | 2004-12-07 |
| 6781895 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more | 2004-08-24 |
| 6747311 | Nonvolatile semiconductor memory device and method for manufacturing the same | Akira Goda, Riichiro Shirota, Kazuhiro Shimizu, Hiroaki Hazama, Hirohisa Iizuka +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 |
| 6703658 | Non-volatile semiconductor memory device and its manufacturing method | Toshitake Yaegashi, Kazuhiro Shimizu | 2004-03-09 |
| 6680230 | Semiconductor device and method of fabricating the same | Norihisa Arai, Fumitaka Arai, Akira Shimizu, Riichiro Shirota | 2004-01-20 |