Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7602638 | Semiconductor memory device | — | 2009-10-13 |
| 7532519 | Semiconductor memory device | — | 2009-05-12 |
| 7333368 | Semiconductor memory device | — | 2008-02-19 |
| 7330374 | Nonvolatile semiconductor memory device, such as an EEPROM or a flash memory, with reference cells | — | 2008-02-12 |
| 7075839 | Semiconductor memory device | Akira Sugimoto, Takao Ozeki | 2006-07-11 |
| 6067265 | Reference potential generator and a semiconductor memory device having the same | Hiroshige Hirano, George Nakane, Tetsuji Nakakuma, Tatsumi Sumi, Nobuyuki Moriwaki | 2000-05-23 |
| 5953277 | Reference potential generator and a semiconductor memory device having the same | Hiroshige Hirano, George Nakane, Tetsuji Nakakuma, Tatsumi Sumi, Nobuyuki Moriwaki | 1999-09-14 |
| 5828615 | Reference potential generator and a semiconductor memory device having the same | Hiroshige Hirano, George Nakane, Tetsuji Nakakuma, Tatsumi Sumi, Nobuyuki Moriwaki | 1998-10-27 |
| 5546342 | Semiconductor memory device including reverse and rewrite means | George Nakane, Nobuyuki Moriwaki, Tatsumi Sumi, Hiroshige Hirano, Tetsuji Nakakuma | 1996-08-13 |
| 5523974 | Semiconductor memory device with redundant memory cell backup | Hiroshige Hirano, George Nakane, Tetsuji Nakakuma, Nobuyuki Moriwaki, Tatsumi Sumi | 1996-06-04 |
| 5515312 | Semiconductor memory device | Tetsuji Nakakuma, Tatsumi Sumi, Hiroshige Hirano, George Nakane, Nobuyuki Moriwaki | 1996-05-07 |