Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6201275 | Semiconductor device having semiconductor regions of different conductivity types isolated by field oxide, and method of manufacturing the same | Atsushi Kawasaki, Kohei Eguchi, Fumitaka Sugaya | 2001-03-13 |
| 6171916 | Semiconductor device having buried gate electrode with silicide layer and manufacture method thereof | Masahiro Sugawara | 2001-01-09 |
| 6144585 | Semiconductor storage device for storing three-or multi-valued data in one memory cell | — | 2000-11-07 |
| 6089460 | Semiconductor device with security protection function, ciphering and deciphering method thereof, and storage medium for storing software therefor | — | 2000-07-18 |
| 6023781 | Multilevel semiconductor memory, write/read method thereto/therefrom and storage medium storing write/read program | — | 2000-02-08 |
| 5994736 | Semiconductor device having buried gate electrode with silicide layer and manufacture method thereof | Masahiro Sugawara | 1999-11-30 |
| 5925907 | Semiconductor device including transistor with composite gate structure and transistor with single gate structure | — | 1999-07-20 |
| 5856691 | Element-to-element interconnection in semiconductor device | — | 1999-01-05 |
| 5780890 | Nonvolatile semiconductor memory device and a method of writing data in the same | — | 1998-07-14 |
| 5780894 | Nonvolatile semiconductor memory device having stacked-gate type transistor | — | 1998-07-14 |
| 5682347 | Data reading method in semiconductor storage device capable of storing three-or multi-valued data in one memory cell | — | 1997-10-28 |
| 5515321 | Data reading method in semiconductor storage device capable of storing three- or multi-valued data in one memory cell | — | 1996-05-07 |