Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822349 | Semiconductor device and method of manufacturing the same | Keiji Takaoka, Mitsuhiro Kushibe, Yoshihiro Kokubun | 1998-10-13 |
| 5317167 | Semiconductor light-emitting device with InGaAlp | Yasuo Ohba, Ako Hatano | 1994-05-31 |
| 5273933 | Vapor phase growth method of forming film in process of manufacturing semiconductor device | Ako Hatano, Yasuo Ohba | 1993-12-28 |
| 5235194 | Semiconductor light-emitting device with InGaAlP | Yasuo Ohba, Ako Hatano | 1993-08-10 |
| 5103271 | Semiconductor light emitting device and method of fabricating the same | Yasuo Ohba, Ako Hatano | 1992-04-07 |
| 5079184 | Method of manufacturing III-IV group compound semiconductor device | Ako Hatano, Yasuo Ohba | 1992-01-07 |
| 5076860 | AlGaN compound semiconductor material | Yasuo Ohba, Ako Hatano | 1991-12-31 |
| 5042043 | Semiconductor laser using five-element compound semiconductor | Ako Hatano, Yasuo Ohba | 1991-08-20 |
| 5005057 | Semiconductor light-emitting diode and method of manufacturing the same | Yasuo Ohba, Ako Hatano | 1991-04-02 |