Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132752 | Field effect transistor | Yasunari Umemoto, Nobuo Kotera, Kiichi Ueyanagi, Nobutoshi Matsunaga, Yasuo Wada +4 more | 1992-07-21 |
| 5124770 | Field effect transistor with alpha particle protection | Yasunari Umemoto, Kiichi Ueyanagi, Junji Shigeta | 1992-06-23 |
| 4805005 | Semiconductor device and manufacturing method of the same | Toshiyuki Usagawa, Yasuhiro Shiraki, Yuichi Ono, Susumu Takahashi | 1989-02-14 |
| 4529476 | Gas for selectively etching silicon nitride and process for selectively etching silicon nitride with the gas | Yoshifumi Kawamoto, Hiroshi Kawakami, Tokuo Kure, Shinichi Tachi, Tsuyoshi Takaichi | 1985-07-16 |
| 4477182 | Pattern exposing apparatus | Akihiro Takanashi, Hisashi Maejima, Shuji Sugiyama | 1984-10-16 |
| 4451841 | Semiconductor device with multi-layered electrodes | Ryoichi Hori, Masaharu Kubo, Shigeru Nishimatsu, Kiyoo Itoh | 1984-05-29 |
| 4377819 | Semiconductor device | Yoshio Sakai, Toshiaki Masuhara, Osamu Minato, Toshio Sasaki, Hisao Katto +2 more | 1983-03-22 |
| 4361949 | Process for making a memory device | Ryoichi Hori, Masaharu Kubo, Shigeru Nishimatsu, Kiyoo Itoh | 1982-12-07 |
| 4355374 | Semiconductor memory device | Yoshio Sakai, Mitsumasa Koyanagi, Hideo Sunami | 1982-10-19 |
| 4270262 | Semiconductor device and process for making the same | Ryoichi Hori, Masaharu Kubo, Shigeru Nishimatsu, Kiyoo Itoh | 1981-06-02 |