Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7057210 | Electrode for light-emitting semiconductor devices and method of producing the electrode | Takashi Udagawa, Noritaka Muraki, Mineo Okuyama | 2006-06-06 |
| 6852161 | METHOD OF FABRICATING GROUP-III NITRIDE SEMICONDUCTOR CRYSTAL, METHOD OF FABRICATING GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR, GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR, GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE, AND LIGHT SOURCE USING THE SEMICONDUCTOR LIGHT-EMITTING DEVICE | Yasuhito Urashima, Mineo Okuyama, Tetsuo Sakurai | 2005-02-08 |
| 6800501 | Electrode for light-emitting semiconductor devices and method of producing the electrode | Takashi Udagawa, Noritaka Muraki, Mineo Okuyama | 2004-10-05 |
| 6403987 | Electrode for light-emitting semiconductor devices | Takashi Udagawa, Noritaka Muraki, Mineo Okuyama | 2002-06-11 |
| 6326223 | Electrode for light-emitting semiconductor devices and method of producing the electrode | Takashi Udagawa, Noritaka Muraki, Mineo Okuyama | 2001-12-04 |
| 6268618 | Electrode for light-emitting semiconductor devices and method of producing the electrode | Takashi Udagawa, Noritaka Muraki, Mineo Okuyama | 2001-07-31 |