Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6426512 | Group III nitride compound semiconductor device | Jun Ito, Toshiaki Chiyo, Naoki Shibata, Hiroshi Watanabe, Shizuyo Asami | 2002-07-30 |
| 6423984 | Light-emitting semiconductor device using gallium nitride compound semiconductor | Hisaki Kato, Hiroshi Watanabe, Norikatsu Koide | 2002-07-23 |
| 6420733 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Junichi Umezaki, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2002-07-16 |
| 6342404 | Group III nitride compound semiconductor device and method for producing | Naoki Shibata, Jun Ito, Toshiaki Chiyo, Shizuyo Asami, Hiroshi Watanabe | 2002-01-29 |