Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890261 | Variable word length circuit of semiconductor memory | Hideto Hidaka, Yoshio Matsuda | 1989-12-26 |
| 4887136 | Semiconductor memory device and the method for manufacturing the same | Yoshio Matsuda | 1989-12-12 |
| 4855953 | Semiconductor memory device having stacked memory capacitors and method for manufacturing the same | Katsuhiro Tsukamoto, Masahiro Shimizu, Yoshio Matsuda | 1989-08-08 |
| 4839864 | Semiconductor memory device comprising programmable redundancy circuit | — | 1989-06-13 |
| 4835743 | Semiconductor memory device performing multi-bit Serial operation | Hideto Hidaka, Hideyuki Ozaki, Kazutoshi Hirayama | 1989-05-30 |
| 4833650 | Semiconductor memory device including programmable mode selection circuitry | Kazutoshi Hirayama, Hideyuki Ozaki, Hideto Hidaka | 1989-05-23 |
| 4833645 | Semiconductor memory device having improved resistance to alpha particle induced soft errors | Yoshio Matsuda | 1989-05-23 |
| 4811304 | MDS decoder circuit with high voltage suppression of a decoupling transistor | Yoshio Matsuda, Hideshi Miyatake | 1989-03-07 |
| 4808844 | Semiconductor device | Hideyuki Ozaki, Kazutoshi Hirayama, Hideto Hidaka | 1989-02-28 |
| 4809230 | Semiconductor memory device with active pull up | Yasuhiro Konishi, Masaki Kumanoya, Hideshi Miyatake, Hideto Hidaka, Katsumi Dosaka | 1989-02-28 |