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. 18, 2010
Filed:
Aug. 03, 2004
Noboru Fujii, Shinagawa, JP;
Takashi Arita, Shinagawa, JP;
Nobuyoshi Shimizu, Shinagawa, JP;
Akio Nakamura, Shinagawa, JP;
Shinichiro Akieda, Shinagawa, JP;
Shigemi Kurashima, Shinagawa, JP;
Noboru Fujii, Shinagawa, JP;
Takashi Arita, Shinagawa, JP;
Nobuyoshi Shimizu, Shinagawa, JP;
Akio Nakamura, Shinagawa, JP;
Shinichiro Akieda, Shinagawa, JP;
Shigemi Kurashima, Shinagawa, JP;
Fujitsu Component Limited, Tokyo, JP;
Abstract
An actuator includes: a magnetic field generator that has different magnetic poles alternately arranged in a plane, with a predetermined position being the center of the magnetic poles; a coil holder that holds a plurality of coils that are radially arranged and face the magnetic field generator, relative motion being caused between the magnetic field generator and the coil holder; and an electromagnetic conversion unit that detects the relative motion and is mounted on either the magnetic field generator or the coil holder.