Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399890 | Semiconductor memory device in which a capacitor electrode of a memory cell and an interconnection layer of a peripheral circuit are formed in one level | Hisashi Ogawa, Naoto Matsuo, Yoshiro Nakata, Toshiki Yabu, Susumu Matsumoto | 1995-03-21 |
| 5316962 | Method of producing a semiconductor device having trench capacitors and vertical switching transistors | Naoto Matsuo, Michihiro Inoue | 1994-05-31 |
| 5315543 | Semiconductor memory device and a manufacturing method thereof | Naoto Matsuo, Hisashi Ogawa, Yoshiro Nakata | 1994-05-24 |
| 5242852 | Method for manufacturing a semiconductor memory device | Kazuhiro Matsuyama, Masanori Fukumoto, Yasushi Naito, Hisashi Ogawa | 1993-09-07 |
| 5241201 | Dram with concentric adjacent capacitors | Naoto Matsuo, Susumu Matsumoto, Yoshiro Nakata, Toshiki Yabu | 1993-08-31 |
| 5217914 | Method for making semiconductor integration circuit with stacked capacitor cells | Susumu Matsumoto, Toshiki Yabu, Yoshiro Nakata, Naoto Matsuo, Hiroyuki Sakai | 1993-06-08 |
| 5214296 | Thin-film semiconductor device and method of fabricating the same | Yoshiro Nakata, Naoto Matsuo, Toshiki Yabu, Susumu Matsumoto | 1993-05-25 |
| 5182452 | Method for determining the presence of thin insulating films | Masaaki Niwa | 1993-01-26 |
| 5181089 | Semiconductor memory device and a method for producing the same | Naoto Matsuo, Michihiro Inoue | 1993-01-19 |
| 5089869 | Semiconductor memory device | Naoto Matsuo, Michihiro Inoue | 1992-02-18 |
| 4897368 | Method of fabricating a polycidegate employing nitrogen/oxygen implantation | Kazuhiro Kobushi, Shuichi Kameyama, Kazuhiko Tsuji | 1990-01-30 |