Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642875 | PWM converting circuit, D/A converter and PWM converting method with improved resolution | Masako Arizumi | 2003-11-04 |
| 6628030 | Direct current motor using magnets with extensions | Takeshi Tanaka | 2003-09-30 |
| 6580237 | Direct-current motor and manufacturing method of the same | Takeshi Tanaka | 2003-06-17 |
| 6563938 | Sheet-through type document reader | — | 2003-05-13 |
| 6557843 | Document feeder with linking mechanism | Masuo Kawamoto, Hideki Kitagawa | 2003-05-06 |