Issued Patents All Time
Showing 26–50 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7112243 | Method for producing Group III nitride compound semiconductor | Shiro Yamazaki | 2006-09-26 |
| 7084421 | Light-emitting device using group III nitride group compound semiconductor | Shiro Yamazaki, Akira Kojima | 2006-08-01 |
| 7063997 | Process for producing nitride semiconductor light-emitting device | Dong Hyun Cho, Hun Joo Hahm | 2006-06-20 |
| 7045829 | Light-emitting semiconductor device using Group III nitride compound | Shinya Asami | 2006-05-16 |
| 7001790 | Light-emitting aluminum gallium indium nitride compound semiconductor device having an improved luminous intensity | Katsuhide Manabe, Hisaki Kato, Michinari Sassa, Shiro Yamazaki, Makoto Asai +1 more | 2006-02-21 |
| 6979584 | Method for producing group III nitride compound semiconductor and group III nitride compound semiconductor device | Yuta Tezen, Toshio Hiramatsu | 2005-12-27 |
| 6962828 | Methods for manufacturing a light-emitting device | Norikatsu Koide, Shiro Yamasaki, Isamu Akasaki, Hiroshi Amano | 2005-11-08 |
| 6946788 | Light-emitting element | Yoshinobu Suehiro, Hideaki Kato | 2005-09-20 |
| 6946370 | Semiconductor crystal producing method | Hiroshi Watanabe | 2005-09-20 |
| 6897138 | Method and apparatus for producing group III nitride compound semiconductor | Hiroshi Watanabe | 2005-05-24 |
| 6861305 | Methods for fabricating group III nitride compound semiconductors and group III nitride compound semiconductor devices | Yuta Tezen, Toshio Hiramatsu, Seiji Nagai | 2005-03-01 |
| 6860943 | Method for producing group III nitride compound semiconductor | Hiroshi Watanabe | 2005-03-01 |
| 6855620 | Method for fabricating Group III nitride compound semiconductor substrates and semiconductor devices | Seiji Nagai, Yuta Tezen | 2005-02-15 |
| 6830948 | Method for producing group III nitride compound semiconductor and group III nitride compound semiconductor device | Akira Kojima, Toshio Hiramatsu, Yuta Tezen | 2004-12-14 |
| 6821800 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Junichi Umezaki, Shiro Yamasaki, Seiji Nagai | 2004-11-23 |
| 6801559 | Group III nitride compound semiconductor laser | Takashi Hatano, Sho Iwayama | 2004-10-05 |
| 6790279 | Method for manufacturing group III nitride compound semiconductor and a light-emitting device using group III nitride compound semiconductor | Seiji Nagai | 2004-09-14 |
| 6716655 | Group III nitride compound semiconductor element and method for producing the same | Seiji Nagai, Kazuyoshi Tomita | 2004-04-06 |
| 6680957 | Group III nitride compound semiconductor laser | Shiro Yamasaki, Yuta Tezen, Seiji Nagai, Akira Kojima, Toshio Hiramatsu | 2004-01-20 |
| 6679947 | Semiconductor substrate | Seiji Nagai | 2004-01-20 |
| 6645785 | Light-emitting semiconductor device using group III nitride compound | Shinya Asami | 2003-11-11 |
| 6645295 | Method for manufacturing group III nitride compound semiconductor and a light-emitting device using group III nitride compound semiconductor | Seiji Nagai | 2003-11-11 |
| 6639258 | Group III nitride compound semiconductor device | Shiro Yamasaki | 2003-10-28 |
| 6631149 | Laser diode using group III nitride group compound semiconductor | Yuta Tezen | 2003-10-07 |
| 6620643 | Light-emitting device using group III nitride compound semiconductor | — | 2003-09-16 |