Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541621 | Semiconductor light emitting device having a current narrowing portion and manufacturing method for semiconductor light emitting device | Takahisa Kurahashi, Shouichi Ooyama, Osamu Yamamoto | 2009-06-02 |
| 7495263 | Semiconductor light-emitting device and manufacturing method therefor | Takahisa Kurahashi, Hiroyuki Hosoba, Hiroshi Nakatsu, Shouichi Ohyama | 2009-02-24 |
| 7348195 | Semiconductor light-emitting device and method for fabricating the device | Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba | 2008-03-25 |
| 7166865 | Semiconductor light emitting device and method for manufacturing same | Takahisa Kurahashi, Shouichi Ohyama, Hiroshi Nakatsu | 2007-01-23 |
| 6924502 | Semiconductor light emitting device for stably obtaining peak wave length of emission spectrum | Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba | 2005-08-02 |
| 6822266 | Semiconductor light-emitting device | Takahisa Kurahashi, Hiroshi Nakatsu, Shouichi Ohyama | 2004-11-23 |
| 6815727 | Semiconductor light emitting device | Takahisa Kurahashi, Shouichi Ohyama, Hiroshi Nakatsu | 2004-11-09 |
| 6797986 | Semiconductor light emitting element | Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba | 2004-09-28 |
| 6794687 | Semiconductor light-emitting device and method for fabricating the device | Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba | 2004-09-21 |
| 6617606 | Light-emitting semiconductor element | Hiroshi Nakatsu, Takahisa Kurahashi, Shouichi Ohyama | 2003-09-09 |
| 6617614 | Semiconductor light-emitting device | Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba | 2003-09-09 |
| 6548824 | Semiconductor light emitting device for stably obtaining peak wave length of emission spectrum | Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba | 2003-04-15 |
| 6501101 | Light emitting diode | Takahisa Kurahashi, Shouichi Ohyama, Hiroshi Nakatsu | 2002-12-31 |
| 6433364 | Semiconductor light emitting device capable of increasing light emitting efficiency | Hiroyuki Hosoba, Hiroshi Nakatsu, Takahisa Kurahashi | 2002-08-13 |