Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836428 | Semiconductor memory device including Shadow RAM | Takeshi Nakura | 2004-12-28 |
| 6731530 | Shadow RAM cell using a ferroelectric capacitor | Hideo Toyoshima | 2004-05-04 |
| 6654273 | Shadow ram cell using a ferroelectric capacitor | Hideo Toyoshima | 2003-11-25 |
| 6646909 | Memory cell, nonvolatile memory device and control method therefor improving reliability under low power supply voltage | Hideo Toyoshima | 2003-11-11 |
| 6285575 | Shadow RAM cell and non-volatile memory device employing ferroelectric capacitor and control method therefor | — | 2001-09-04 |
| 5991189 | Ferroelectric random access memory devices having short-lived cell detector available for life test for ferroelectric capacitor and method for testing ferroelectric memory cells | — | 1999-11-23 |
| 5978252 | Ferroelectric memory device having fatigue averaging | — | 1999-11-02 |
| 5821792 | Current differential amplifier circuit | — | 1998-10-13 |
| 5787458 | Content addressable memory of a simple construction capable of retrieving a variable word length data | — | 1998-07-28 |
| 5677883 | Semiconductor associative memory device with address corrector for generating formal address signal representative of one of regular memory words partially replaced with redundant memory word | — | 1997-10-14 |
| 5586075 | Electrically erasable and programmable read-only memory having redundant memory cell row | — | 1996-12-17 |
| 5515320 | Non-volatile memory | — | 1996-05-07 |