Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633184 | Method of making semiconductor device with floating bate | Yukari Imai, Naoko Otani | 1997-05-27 |
| 5434813 | Semiconductor memory device and manufacturing method of the same | Yukari Imai, Naoko Otani | 1995-07-18 |
| 5381032 | Semiconductor device having a gate electrode of polycrystal layer and a method of manufacturing thereof | Yoshiko Kokawa, Tohru Koyama, Kenji Kusakabe, Yasuna Nakamura | 1995-01-10 |
| 5360756 | Method of manufacturing a semiconductor device having a monocrystal silicon layer | — | 1994-11-01 |
| 5338955 | Semiconductor device having stacked type capacitor | Atsuko Kawai | 1994-08-16 |
| 5221630 | Method of manufacturing semiconductor device having a two layered structure gate electrode | Tohru Koyama, Yasuna Nakamura, Yoshiko Kokawa, Kenji Kusakabe | 1993-06-22 |
| 5177569 | Semiconductor device having a two layered structure gate electrode | Tohru Koyama, Yasuna Nakamura, Yoshiko Kokawa, Kenji Kusakabe | 1993-01-05 |
| 4778584 | Liquid filter device | Noboru Inoue, Takaaki Fukumoto, Masaharu Hama, Kimihiko Okaue | 1988-10-18 |
| 4765963 | Apparatus for measuring impurities in water | Yasukazu Mukogawa, Takaaki Fukumoto | 1988-08-23 |