Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7045809 | Light-emitting semiconductor device using gallium nitride compound semiconductor | Hisaki Kato, Hiroshi Watanabe, Norikatsu Koide | 2006-05-16 |
| 7045829 | Light-emitting semiconductor device using Group III nitride compound | Masayoshi Koike | 2006-05-16 |
| 7030414 | III group nitride compound semiconductor luminescent element | Hiroshi Watanabe, Jun Ito, Naoki Shibata | 2006-04-18 |
| 6982435 | Group III nitride compound semiconductor device and method for producing the same | Naoki Shibata, Jun Ito, Toshiaki Chiyo, Shizuyo Asami, Hiroshi Watanabe | 2006-01-03 |
| 6939733 | Group III nitride compound semiconductor device and method of producing the same | Naoki Shibata, Jun Ito, Toshiaki Chiyo, Shizuyo Asami, Hiroshi Watanabe +1 more | 2005-09-06 |
| 6918961 | Group III nitride compound semiconductor device and producing method therefor | Toshiaki Chiyo, Naoki Shibata, Masanobu Senda, Jun Ito, Shizuyo Asami +1 more | 2005-07-19 |
| 6872965 | Group III nitride compound semiconductor device | Jun Ito, Toshiaki Chiyo, Naoki Shibata, Hiroshi Watanabe, Shizuyo Asami | 2005-03-29 |
| 6853009 | Light-emitting semiconductor device using gallium nitride compound semiconductor | Hisaki Kato, Hiroshi Watanabe, Norikatsu Koide | 2005-02-08 |
| 6841808 | Group III nitride compound semiconductor device and method for producing the same | Naoki Shibata, Toshiaki Chiyo, Masanobu Senda, Jun Ito, Hiroshi Watanabe +1 more | 2005-01-11 |
| 6838706 | Group III nitride compound semiconductor light-emitting device which emits light having a wavelength in a range from 360 to 550 NM | Hiroshi Watanabe, Jun Ito, Naoki Shibata | 2005-01-04 |
| 6821800 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Junichi Umezaki, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2004-11-23 |
| 6713789 | Group III nitride compound semiconductor device and method of producing the same | Naoki Shibata, Jun Ito, Toshiaki Chiyo, Shizuyo Asami, Hiroshi Watanabe +1 more | 2004-03-30 |
| 6645785 | Light-emitting semiconductor device using group III nitride compound | Masayoshi Koike | 2003-11-11 |
| 6623998 | Method for manufacturing group III nitride compound semiconductor device | Naoki Shibata, Toshiaki Chiyo, Masanobu Senda, Jun Ito, Hiroshi Watanabe +1 more | 2003-09-23 |
| 6593016 | Group III nitride compound semiconductor device and producing method thereof | Toshiaki Chiyo, Naoki Shibata, Masanobu Senda, Jun Ito, Shizuyo Asami +1 more | 2003-07-15 |
| 6541293 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Junichi Umezaki, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2003-04-01 |
| 6531719 | Group III nitride compound semiconductor device | Naoki Shibata, Toshiaki Chiyo, Masanobu Senda, Jun Ito, Hiroshi Watanabe +1 more | 2003-03-11 |
| 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 |
| 6326236 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Junichi Umezaki, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2001-12-04 |
| 6288416 | Light-emitting semiconductor device using group III nitride compound | Masayoshi Koike | 2001-09-11 |
| 6040588 | Semiconductor light-emitting device | Norikatsu Koide, Junichi Umezaki, Masayoshi Koike, Shiro Yamasaki, Seiji Nagai | 2000-03-21 |
| 5959401 | Light-emitting semiconductor device using group III nitride compound | Masayoshi Koike | 1999-09-28 |