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:
Dec. 30, 2014
Filed:
Jan. 28, 2011
Atsushi Urayama, Tochigi, JP;
Hirozumi Kon, Utsunomiya, JP;
Hironori Koyama, Kasugai, JP;
Mutsumi Muraoka, Aichi-ken, JP;
Atsushi Muramatsu, Komaki, JP;
Atsushi Urayama, Tochigi, JP;
Hirozumi Kon, Utsunomiya, JP;
Hironori Koyama, Kasugai, JP;
Mutsumi Muraoka, Aichi-ken, JP;
Atsushi Muramatsu, Komaki, JP;
Keihin Corporation, Tokyo, JP;
Sumitomo Riko Company Limited, Komaki, JP;
Abstract
An active antivibration device which includes a main body, a mobile element which is elastically supported inside the main body and movable in an axial direction of the main body, and a coil which is disposed inside the main body and fixed to the main body. The mobile element includes a mobile axis body supported in the axial direction of the main body, and a first yoke, a permanent magnet and a second yoke which are held by the mobile axis body and disposed successively along an axial direction of the mobile axis body. The permanent magnet is magnetized in the axial direction of the mobile axis body and disposed between the first yoke and the second yoke.