Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803807 | Negative voltage output charge pump circuit | Toshiya Fujiyama, Hiroki Doi | 2004-10-12 |
| 6720761 | Hall device biasing circuit and magnetism detection circuit including the same | Hiroki Doi | 2004-04-13 |