| TOTANKAKO CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100133948 | CARBON COMMUTATOR AND CARBON BRUSH FOR FUEL PUMP, AND FUEL PUMP HAVING THE CARBON COMMUTATOR AND THE CARBON BRUSH INCORPORATED THEREIN - The present invention provides a carbon commutator and a carbon brush for a fuel pump which have excellent slidability and abrasion resistance, and a fuel pump having the carbon commutator and the carbon brush incorporated therein. In the carbon commutator for a fuel pump, at least a contact portion to contact with a brush contains 0.2 to less than 5% by weight of an amorphous carbon. The carbon brush for a fuel pump to contact with and slide on the carbon commutator contains 0.2 to not more than 5% by weight of an amorphous carbon. The fuel pump includes the carbon commutator having the foregoing structure and the carbon brush having the foregoing structure. | 06-03-2010 |
| 20080303373 | Carbon Bruch - A carbon brush that can suppress a wear amount of a carbon commutator and is less swelling is provided. The carbon brush is one that slides in contact with a carbon commutator that is used in a fuel pump, the bulk density thereof being 1.85 g/cm | 12-11-2008 |
