Issued Patents All Time
Showing 51–75 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6067265 | Reference potential generator and a semiconductor memory device having the same | Toshio Mukunoki, George Nakane, Tetsuji Nakakuma, Tatsumi Sumi, Nobuyuki Moriwaki | 2000-05-23 |
| 6028782 | Data reading method of ferroelectric memory device, and ferroelectric memory device | Koji Asari | 2000-02-22 |
| 5969979 | Ferroelectric memory device | — | 1999-10-19 |
| 5953264 | Redundant memory cell selecting circuit having fuses coupled to memory cell group address and memory cell block address | Hisakazu Kotani, Naomi Miyake | 1999-09-14 |
| 5953277 | Reference potential generator and a semiconductor memory device having the same | Toshio Mukunoki, George Nakane, Tetsuji Nakakuma, Tatsumi Sumi, Nobuyuki Moriwaki | 1999-09-14 |
| 5920509 | Nonvolatile semiconductor memory device capable of conditioning over-erased memory cells | Toshiyuki Honda | 1999-07-06 |
| 5898608 | Method for operating a ferroelectric memory | Tatsumi Sumi, Nobuyuki Moriwaki | 1999-04-27 |
| 5864247 | Voltage detection circuit, power-on/off reset circuit, and semiconductor device | Kouji Asari, Tatsumi Sumi | 1999-01-26 |
| 5841698 | Semiconductor device | Toshiyuki Honda | 1998-11-24 |
| 5831904 | Non-volatile semiconductor memory device capable of conditioning over-erased memory cells | Toshiyuki Honda | 1998-11-03 |
| 5828615 | Reference potential generator and a semiconductor memory device having the same | Toshio Mukunoki, George Nakane, Tetsuji Nakakuma, Tatsumi Sumi, Nobuyuki Moriwaki | 1998-10-27 |
| 5828619 | Semiconductor memory device | Masaya Okada | 1998-10-27 |
| 5760606 | High voltage withstanding circuit and voltage level shifter | Shigeo Chaya, Toshiyuki Honda | 1998-06-02 |
| 5751628 | Ferroelectric memory devices and method for testing them | Nobuyuki Moriwaki, Tetsuji Nakakuma, Toshiyuki Honda, George Nakane | 1998-05-12 |
| 5751650 | Electric signal supply circuit and semiconductor memory device | Tetsuji Nakakuma | 1998-05-12 |
| 5740114 | Redundant memory cell selecting circuit having fuses coupled to memory cell group address and memory cell block address | Hisakazu Kotani, Naomi Miyake | 1998-04-14 |
| 5706242 | Semiconductor device having a controllable voltage supply | Toshiyuki Honda | 1998-01-06 |
| 5694445 | Semiconductor device with means for charge recycling | Tatsumi Sumi | 1997-12-02 |
| 5687126 | Semiconductor device | Toshiyuki Honda | 1997-11-11 |
| 5675530 | Ferroelectric memory device | Nobuyuki Moriwaki, Tatsumi Sumi | 1997-10-07 |
| 5650742 | Voltage-level shifter | — | 1997-07-22 |
| 5617049 | Pulse signal generator and redundancy selection signal generator | Takashi Taniguchi | 1997-04-01 |
| 5594697 | Semiconductor device | Toshiyuki Honda | 1997-01-14 |
| 5546342 | Semiconductor memory device including reverse and rewrite means | George Nakane, Toshio Mukunoki, Nobuyuki Moriwaki, Tatsumi Sumi, Tetsuji Nakakuma | 1996-08-13 |
| 5523974 | Semiconductor memory device with redundant memory cell backup | George Nakane, Tetsuji Nakakuma, Nobuyuki Moriwaki, Toshio Mukunoki, Tatsumi Sumi | 1996-06-04 |