Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812483 | Optical semiconductor element utilizing optical transition between ZnO heterostructure sub-bands | Masashi Kawasaki, Keita Ohtani | 2004-11-02 |
| 6727522 | Transistor and semiconductor device | Masashi Kawasaki | 2004-04-27 |
| 6703645 | Spin filter | Keita Ohtani | 2004-03-09 |