Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8305006 | Light emitting element control circuit | Takaaki Ishii | 2012-11-06 |
| 8228005 | Light-emitting-element driving circuit | Tomoshi Yoshida | 2012-07-24 |
| 8203524 | Light-emitting element driving circuit | Tomoshi Yoshida | 2012-06-19 |
| 8093879 | Semiconductor circuit | Ryuji Yamamoto | 2012-01-10 |
| 7573248 | Step-up switching voltage regulator circuit | — | 2009-08-11 |
| 7256552 | LED control circuit | Takaaki Ishii | 2007-08-14 |