Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8044430 | Nitride semiconductor light-emitting device comprising multiple semiconductor layers having substantially uniform N-type dopant concentration | Toshiya Yokogawa | 2011-10-25 |
| 8030677 | Semiconductor light emitting element and method for manufacturing same | Naomi Anzue, Gaku Sugahara, Yoshiaki Hasegawa, Toshiya Yokogawa | 2011-10-04 |
| 8018134 | Light source, optical pickup, and electronic apparatus | Isao Kidoguchi, Yasuo Kitaoka, Hiroyoshi Yajima, Keiji Ito, Yoshiaki Hasegawa +1 more | 2011-09-13 |