Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654913 | Apparatus and method for extending data retention time of semiconductor storage circuit | Tetsuyuki Fukushima, Hiroyuki Yamauchi | 1997-08-05 |
| 5652729 | Semiconductor integrated circuit apparatus and method of adjusting refresh timer cycle | Hiroyuki Yamauchi | 1997-07-29 |
| 5638013 | Charge redistribution circuit and method | Hiroyuki Yamauchi | 1997-06-10 |