The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 2007
Filed:
Apr. 14, 2004
Takehiro Saruwatari, Kashiwara, JP;
Tetsuya Murakami, Nara, JP;
Hiroshi Murataka, Yamato-Koriyama, JP;
Akihiro Hironaka, Yamato-Koriyama, JP;
Takehiro Saruwatari, Kashiwara, JP;
Tetsuya Murakami, Nara, JP;
Hiroshi Murataka, Yamato-Koriyama, JP;
Akihiro Hironaka, Yamato-Koriyama, JP;
Jtekt Corporation, Osaka, JP;
Gates Unitta Asia Company, Osaka, JP;
Abstract
An electric power steering apparatus comprises an electric motor for producing a steering assist force, and a speed reduction mechanism for decelerating the rotation of an output shaft in the electric motor. The speed reduction mechanism comprises an input pulley driven by the electric motor, an output pulley connected to a steering shaft, and a belt for connecting the input pulley and the output pulley to each other. The belt comprises a helical toothed belt. The input pulley and the output pulley respectively include helical toothed pulleys meshed with the helical toothed belt.