Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6734515 | Semiconductor light receiving element | Kazuyuki Tadatomo, Hiroaki Okagawa, Masahiro Koto, Kazumasa Hiramatsu, Yutaka Hamamura +1 more | 2004-05-11 |
| 6225650 | GAN group crystal base member having low dislocation density, use thereof and manufacturing methods thereof | Kazuyuki Tadatomo, Hiroaki Okagawa, Keiji Miyashita, Kazumasa Hiramatsu, Nobuhiko Sawaki +2 more | 2001-05-01 |
| 5793061 | Group-III nitride based light emitter | Hiroaki Okagawa, Shinichi Watabe, Kazuyuki Tadatomo | 1998-08-11 |