Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674646 | Mask producing method | Toshiaki Kawabata, Kenji Nakagawa, Seiichiro Yamaguchi, Kazuhiko Sumi, Yuichiro Yanagishita | 1997-10-07 |
| 5650647 | Dynamic random access memory device and method of producing same | Taiji Ema | 1997-07-22 |
| 5631547 | Power-supply-voltage reduction device, semiconductor integrated circuit device including the reduction device and method of producing electronic device including such devices | Shin-ya Fujioka | 1997-05-20 |
| 5624791 | Pattern forming method using mask | Toshiaki Kawabata, Kenji Nakagawa, Seiichiro Yamaguchi, Kazuhiko Sumi, Yuichiro Yanagishita | 1997-04-29 |
| 5607821 | Optical exposure method | Tamae Haruki, Kenji Nakagawa, Hiroyuki Tanaka, Satoru Asai, Isamu Hanyu | 1997-03-04 |
| 5594681 | Dynamic random access memory wherein timing of completion of data reading is advanced | — | 1997-01-14 |