Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682046 | Heterojunction bipolar semiconductor device and its manufacturing method | Tsuyoshi Takahashi, Hiroshi Yamada, Kazukiyo Joshin | 1997-10-28 |
| 5406094 | Quantum interference effect semiconductor device and method of producing the same | Hiroshi Arimoto, Akira Endoh | 1995-04-11 |
| 5130766 | Quantum interference type semiconductor device | Hiroshi Arimoto, Shunichi Muto, Makoto Okada, Naoki Yokoyama | 1992-07-14 |
| 4833508 | High electron mobility device with intrinsic AlAs/GaAs superlattice separator region | Tomonori Ishikawa, Satoshi Hiyamizu | 1989-05-23 |
| 4593301 | High electron mobility semiconductor device employing selectively doped heterojunction and dual, undoped spacer layers | Tsuguo Inata | 1986-06-03 |