Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570189 | Semiconductor device and method of manufacturing the same | Yasumasa Kashima | 2003-05-27 |
| 6562649 | Compound semiconductor light emitting device and process for producing the same | Yasumasa Kashima | 2003-05-13 |
| 6470038 | Compound semiconductor light emitting device and process for producing the same | Yasumasa Kashima | 2002-10-22 |
| 6013539 | Edge emitting led and method of forming the same | Yasumasa Kashima | 2000-01-11 |
| 6008066 | Method of manufacturing a light emitting diode to vary band gap energy of active layer | Yasumasa Kashima | 1999-12-28 |
| 5994158 | Method of fabricating an abrupt hetero interface by organometallic vapor phase growth | Yasumasa Kashima | 1999-11-30 |
| 5889294 | Edge emitting LED having a selective-area growth optical absorption region | Yasumasa Kashima | 1999-03-30 |
| 5828085 | Light emitting diode having light-emitting and light-absorbing regions | Yasumasa Kashima | 1998-10-27 |