Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492862 | Charge pump type voltage conversion circuit having small ripple voltage components | — | 2002-12-10 |
| 6392392 | Over-current detecting circuit | — | 2002-05-21 |
| 6335392 | Outsole of shoes | Ikuko Umezawa | 2002-01-01 |