Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7795667 | Semiconductor memory preventing an electric short circuit between a word line and a semiconductor substrate, and manufacturing method for the semiconductor memory | Tadashi Iguchi, Katsuhiro Ishida, Hiroaki Tsunoda, Hiroaki Hazama, Seiichi Mori | 2010-09-14 |
| 7782671 | Semiconductor device and method of manufacturing the same | — | 2010-08-24 |
| 7364951 | Nonvolatile semiconductor memory device and method for manufacturing the same | Akira Goda, Riichiro Shirota, Kazuhiro Shimizu, Hiroaki Hazama, Seiichi Aritome +1 more | 2008-04-29 |
| 7297599 | Method of fabricating semiconductor device | Norio Ohtani, Hiroaki Hazama, Kazuhito Narita, Eiji Kamiya | 2007-11-20 |
| 7238975 | Nonvolatile semiconductor memory device and manufacturing method therefor | Hiroaki Hazama, Seiichi Mori, Norio Ootani, Kazuhito Narita | 2007-07-03 |
| 7227781 | Semiconductor device provided with NAND strings and select gates having different gate lengths | — | 2007-06-05 |
| 7196370 | Nonvolatile semiconductor memory device having trench-type isolation region, and method of fabricating the same | Naoki Kai, Hiroaki Hazama | 2007-03-27 |
| 7195968 | Method of fabricating semiconductor device | Eiji Kamiya, Hiroaki Hazama, Kazuhito Narita, Norio Ohtani | 2007-03-27 |
| 7095085 | Nonvolatile semiconductor memory device and method for manufacturing the same | Akira Goda, Riichiro Shirota, Kazuhiro Shimizu, Hiroaki Hazama, Seiichi Aritome +1 more | 2006-08-22 |
| 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 |
| 6828648 | Semiconductor device and method of manufacturing the same | Naoki Koido, Riichiro Shirota | 2004-12-07 |
| 6828627 | Semiconductor device | Akira Goda, Kazuhiro Shimizu, Riichiro Shirota, Norihisa Arai, Naoki Koido +3 more | 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 |
| 6639296 | Semiconductor device and method of manufacturing the same | Naoki Koido, Riichiro Shirota | 2003-10-28 |
| 6462373 | Nonvolatile semiconductor memory device having tapered portion on side wall of charge accumulation layer | Kazuhiro Shimizu, Riichiro Shirota, Naoki Koido, Seiichi Aritome, Hiroaki Tsunoda +3 more | 2002-10-08 |
| 6413809 | Method of manufacturing a non-volatile memory having an element isolation insulation film embedded in the trench | Takuya Nakamura, Naoki Koido, Kazuhito Narita, Seiichi Aritome, Fumitaka Arai | 2002-07-02 |
| 6288942 | Nonvolatile semiconductor storage device and its manufacturing method | Shinji Satoh, Riichiro Shirota | 2001-09-11 |
| 6274434 | Method of making memory cell with shallow trench isolation | Naoki Koido, Riichiro Shirota | 2001-08-14 |
| 6222225 | Semiconductor device and manufacturing method thereof | Takuya Nakamura, Naoki Koido, Kazuhito Narita, Seiichi Aritome, Fumitaka Arai | 2001-04-24 |
| 6117729 | Nonvolatile semiconductor storage device and its manufacturing method | Shinji Satoh, Riichiro Shirota | 2000-09-12 |