Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8513687 | Semiconductor light emitting device and semiconductor light emitting apparatus | Hiroshi Katsuno, Yasuo Ohba, Kei Kaneko | 2013-08-20 |
| 8470627 | Method for manufacturing semiconductor light emitting device | Yasuo Ohba, Kei Kaneko, Toru Gotoda, Hiroshi Katsuno | 2013-06-25 |
| 8421085 | Semiconductor light-emitting device | Hiroshi Katsuno, Yasuo Ohba, Kei Kaneko, Shinji Yamada | 2013-04-16 |
| 8338844 | Semiconductor light emitting apparatus having stacked reflective dielectric films | Hiroshi Katsuno, Yasuo Ohba, Kei Kaneko | 2012-12-25 |
| 8329489 | Method for manufacturing semiconductor light emitting device | Yasuo Ohba, Kei Kaneko, Toru Gotoda, Hiroshi Katsuno | 2012-12-11 |
| 8324611 | Semiconductor light emitting device and wafer | Kei Kaneko, Yasuo Ohba, Hiroshi Katsuno | 2012-12-04 |
| 8039830 | Semiconductor light emitting device and wafer | Kei Kaneko, Yasuo Ohba, Hiroshi Katsuno | 2011-10-18 |
| 7830937 | Surface emitting type optical semiconductor device | Mizunori Ezaki, Rei Hashimoto, Michihiko Nishigaki | 2010-11-09 |
| 7426228 | Surface emitting type optical semiconductor device | Mizunori Ezaki, Rei Hashimoto, Michihiko Nishigaki | 2008-09-16 |
| 7276735 | Laminated semiconductor substrate and optical semiconductor element | Yasuo Ohba, Rei Hashimoto, Keiji Takaoka | 2007-10-02 |
| 6768137 | Laminated semiconductor substrate and optical semiconductor element | Yasuo Ohba, Rei Hashimoto, Keiji Takaoka | 2004-07-27 |
| 5822349 | Semiconductor device and method of manufacturing the same | Keiji Takaoka, Toshihide Izumiya, Yoshihiro Kokubun | 1998-10-13 |
| 5434426 | Optical interconnection device | Hideto Furuyama, Hiroshi Hamasaki, Katsuji Kaminishi, Tamon Kobayashi, Keiji Takaoka | 1995-07-18 |
| 5432812 | Semiconductor laser device with multi-directional reflector arranged therein | Atsushi Kurobe, Tsutomu Tezuka, Tetsuo Sadamasa, Yoshita Kawakyu | 1995-07-11 |
| 5253262 | Semiconductor laser device with multi-directional reflector arranged therein | Atsushi Kurobe, Tsutomu Tezuka, Tetsuo Sadamasa, Yoshito Kawakyu | 1993-10-12 |
| 5168077 | Method of manufacturing a p-type compound semiconductor thin film containing a III-group element and a v-group element by metal organics chemical vapor deposition | Yasuo Ashizawa, Takao Noda, Masahisa Funemizu, Kazuhiro Eguchi, Yasuo Ohba +1 more | 1992-12-01 |
| 4928285 | Impurity-doped semiconductor laser device for single wavelength oscillation | Kazuhiro Eguchi, Masahisa Funamizu, Yasuo Ohba | 1990-05-22 |