Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316962 | Method of producing a semiconductor device having trench capacitors and vertical switching transistors | Shozo Okada, Michihiro Inoue | 1994-05-31 |
| 5315543 | Semiconductor memory device and a manufacturing method thereof | Hisashi Ogawa, Yoshiro Nakata, Shozo Okada | 1994-05-24 |
| 5312769 | Method of making a semiconductor memory device | Shouzou Okada | 1994-05-17 |
| 5312776 | Method of preventing the corrosion of metallic wirings | Tomoyasu Murakami, Michinari Yamanaka, Kousaku Yano, Masayuki Endo, Noboru Nomura +3 more | 1994-05-17 |