Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821800 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2004-11-23 |
| 6541293 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2003-04-01 |
| 6420733 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2002-07-16 |
| 6326236 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2001-12-04 |
| 6121127 | Methods and devices related to electrodes for p-type group III nitride compound semiconductors | Naoki Shibata, Makoto Asai, Toshiya Uemura, Takahiro Kozawa, Tomohiko Mori +1 more | 2000-09-19 |
| 6040588 | Semiconductor light-emitting device | Norikatsu Koide, Shinya Asami, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2000-03-21 |
| 6008539 | Electrodes for p-type group III nitride compound semiconductors | Naoki Shibata, Makoto Asai, Toshiya Uemura, Takahiro Kozawa, Tomohiko Mori +1 more | 1999-12-28 |
| 5862167 | Light-emitting semiconductor device using gallium nitride compound | Michinari Sassa, Norikatsu Koide, Shiro Yamazaki, Naoki Shibata, Masayoshi Koike +2 more | 1999-01-19 |
| 5753939 | Light-emitting semiconductor device using a Group III nitride compound and having a contact layer upon which an electrode is formed | Michinari Sassa, Naoki Shibata, Shinya Asami, Masayoshi Koike, Takahiro Kozawa | 1998-05-19 |
| 5587593 | Light-emitting semiconductor device using group III nitrogen compound | Norikatsu Koide, Shiro Yamazaki, Shinya Asami | 1996-12-24 |