Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657355 | Plane commutator with metal base plate and carbon compound segments having projections | Yoshio Ebihara | 2003-12-02 |
| 6525445 | Plane commutator and method of manufacturing the same | Kiyotoshi Oi, Yoshio Ebihara | 2003-02-25 |