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:
May. 28, 2013
Filed:
Mar. 05, 2007
Takashi Nagamitsu, Kyoto, JP;
Yoshihisa Kato, Kyoto, JP;
Hiromasa Sumida, Kyoto, JP;
Masayuki Matsushita, Kyoto, JP;
Kouji Muraoka, Kyoto, JP;
Yusuke Yoshida, Kyoto, JP;
Takashi Nagamitsu, Kyoto, JP;
Yoshihisa Kato, Kyoto, JP;
Hiromasa Sumida, Kyoto, JP;
Masayuki Matsushita, Kyoto, JP;
Kouji Muraoka, Kyoto, JP;
Yusuke Yoshida, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A fan includes a shaft, a hollow, approximately cylindrical rotor yoke that rotates around the shaft as a rotation axis and is open toward one of its axial ends, a rotor magnet secured to an inner circumference of the rotor yoke, and an impeller secured to an outer circumference of the rotor yoke and arranged to rotate together with the rotor yoke to generate an air flow. One of the impeller and the rotor yoke is provided with an index used for circumferentially positioning the impeller or the rotor yoke.