Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7405958 | Magnetic memory device having XP cell and Str cell in one chip | — | 2008-07-29 |
| 7009876 | MRAM and data writing method therefor | — | 2006-03-07 |
| 6939722 | Method of forming magnetic memory | Kiyotaka Tsuji | 2005-09-06 |
| 6834018 | Nonvolatile memory device having data read operation with using reference cell and method thereof | Shuuichi Tahara | 2004-12-21 |
| 6812537 | Magnetic memory and method of operation thereof | Katsumi Suemitsu | 2004-11-02 |
| 6746875 | Magnetic memory and method of its manufacture | Kiyotaka Tsuji, Kuniko Kikuta | 2004-06-08 |
| 6703249 | Method of fabricating magnetic random access memory operating based on tunnel magnetroresistance effect | Hideaki Numata | 2004-03-09 |
| 6674663 | Nonvolatile storage device and operating method thereof | Yuukoh Katoh | 2004-01-06 |
| 6643168 | Nonvolatile magnetic storage device | — | 2003-11-04 |
| 6532163 | Non-volatile semiconductor memory device with magnetic memory cell array | — | 2003-03-11 |
| 6477077 | Non-volatile memory device | — | 2002-11-05 |
| 5972750 | Nonvolatile semiconductor memory device and manufacturing method of the same | Hiroki Shirai, Taishi Kubota, Ichiro Honma, Hirohito Watanabe, Haruhiko Ono | 1999-10-26 |
| 5973355 | Nonvolatile semiconductor memory device and manufacturing method of the same | Hiroki Shirai, Taishi Kubota, Ichiro Honma, Hirohito Watanabe, Haruhiko Ono | 1999-10-26 |
| 5787036 | Flash memory including improved transistor cells and a method of programming the memory | — | 1998-07-28 |
| 5675163 | Non-volatile semiconductor memory device with thin insulation layer below erase gate | — | 1997-10-07 |
| 5523969 | Electrically erasable programmable non-volatile semiconductor memory device and method for manufacturing the same | — | 1996-06-04 |
| 5523976 | Non-volatile semiconductor memory device having a memory cell group operative as a redundant memory cell group for replacement of another group | Kenji Saitoh | 1996-06-04 |
| 5371704 | Nonvolatile memory device with compensation for over-erasing operation | — | 1994-12-06 |
| 5316961 | Floating gate type erasable and programmable read only memory cell, method of making the same, and electrically erasing and writing method | — | 1994-05-31 |
| 5309402 | Flash electrically erasable and programmable ROM | — | 1994-05-03 |
| 5295107 | Method of erasing data stored in flash type nonvolatile memory cell | Ken-Ichi Oyama, Hiroki Shirai | 1994-03-15 |
| 5208179 | Method of fabricating programmable read only memory device having trench isolation structure | — | 1993-05-04 |
| 4980732 | Semiconductor device having an improved thin film transistor | — | 1990-12-25 |
| 4885624 | Stacked metal-insulator semiconductor device | — | 1989-12-05 |
| 4716131 | Method of manufacturing semiconductor device having polycrystalline silicon layer with metal silicide film | Yoshiyuki Hirano | 1987-12-29 |