Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8630133 | Memory device | Sadao Yoshikawa | 2014-01-14 |
| 8344766 | Reset circuit of high voltage circuit | Sadao Yoshikawa | 2013-01-01 |
| 8072819 | Memory device with parallel interface | Sadao Yoshikawa | 2011-12-06 |
| 7859913 | Semiconductor memory device | Sadao Yoshikawa | 2010-12-28 |
| 7589583 | Charge pump circuit | Sadao Yoshikawa | 2009-09-15 |
| 7542349 | Semiconductor memory device | Sadao Yoshikawa | 2009-06-02 |
| 7259702 | Memory device | Sadao Yoshikawa | 2007-08-21 |
| 6392447 | Sense amplifier with improved sensitivity | Sadao Yoshikawa | 2002-05-21 |
| 6038172 | Memory device with dummy cell transistor | Sadao Yoshikawa | 2000-03-14 |