Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7037738 | Method of manufacturing a semiconductor light-emitting element | Hitoshi Sugiyama, Kenichi Ohashi, Atsuko Yamashita, Yasuhiko Akaike, Shunji Yoshitake +3 more | 2006-05-02 |
| 6924513 | Light emitting element and manufacturing method for the same | Yasuhiko Akaike, Yoshiyuki Kinugawa | 2005-08-02 |
| 6373069 | Method for evaluating an epitaxial wafer for a light emitting device, recording medium readable by a computer and epitaxial wafer for a light emitting device | Yasuhiko Akaike | 2002-04-16 |
| 5179333 | Apparatus for measuring the electrical characteristics of a semiconductor wafer | Takao Ohta | 1993-01-12 |