Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6265726 | Light-emitting aluminum gallium indium nitride compound semiconductor device having an improved luminous intensity | Katsuhide Manabe, Michinari Sassa, Shiro Yamazaki, Makoto Asai, Naoki Shibata +1 more | 2001-07-24 |
| 6249012 | Light emitting semiconductor device using gallium nitride group compound | Katsuhide Manabe, Akira Mabuchi, Michinari Sassa, Norikatsu Koide, Shiro Yamazaki +2 more | 2001-06-19 |
| 6005258 | Light-emitting semiconductor device using group III Nitrogen compound having emission layer doped with donor and acceptor impurities | Katsuhide Manabe, Michinari Sassa, Shiro Yamazaki, Makoto Asai, Naoki Shibata +1 more | 1999-12-21 |
| 5905276 | Light emitting semiconductor device using nitrogen-Group III compound | Katsuhide Manabe, Masahiro Kotaki, Michinari Sassa, Isamu Akasaki, Hiroshi Amano | 1999-05-18 |
| 5886341 | Photodetection tube with a slidably adapted cathode substrate | Naohisa Tateishi, Katurou Hikita | 1999-03-23 |
| 5733796 | Light-emitting semiconductor device using gallium nitride group compound | Katsuhide Manabe, Akira Mabuchi, Michinari Sassa, Norikatsu Koide, Shiro Yamazaki +2 more | 1998-03-31 |
| 5719390 | Photodetection tube with a lid and cathode holding member in thermal contact with a cooler | Naohisa Tateishi, Katurou Hikita | 1998-02-17 |
| 5650641 | Semiconductor device having group III nitride compound and enabling control of emission color, and flat display comprising such device | Michinari Sassa, Masayoshi Koike, Katsuhide Manabe, Norikatsu Koide, Naoki Shibata +2 more | 1997-07-22 |
| 5620557 | Sapphireless group III nitride semiconductor and method for making same | Katsuhide Manabe, Masayoshi Koike, Norikatsu Koide, Isamu Akasaki, Hiroshi Amano | 1997-04-15 |
| 5604763 | Group III nitride compound semiconductor laser diode and method for producing same | Norikatsu Koide, Masayoshi Koike, Isamu Akasaki, Hiroshi Amano | 1997-02-18 |
| 5481158 | Electron multiplier with improved dynode geometry for reduced crosstalk | Suenori Kimura, Kiyoshi Nakatsugawa, Tsuguo Uchino, Itsuo Ozawa, Hiroyuki Onda | 1996-01-02 |
| 5278433 | Light-emitting semiconductor device using gallium nitride group compound with double layer structures for the n-layer and/or the i-layer | Katsuhide Manabe, Akira Mabuchi, Michinari Sassa, Norikatsu Koide, Shiro Yamazaki +2 more | 1994-01-11 |
| 5122845 | Substrate for growing gallium nitride compound-semiconductor device and light emitting diode | Katsuhide Manabe, Isamu Akasaki, Kazumasa Hiramatsu, Hiroshi Amano | 1992-06-16 |
| 5007718 | Electrochromic elements and methods of manufacturing and driving the same | Jun Minoura, Shigeyuki Takahahi, Toshiyasu Ito, Takaaki Mori, Mamoru Kato +2 more | 1991-04-16 |