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:
Mar. 15, 2011
Filed:
Oct. 29, 2004
Yuichi Nakajima, Kobe, JP;
Kiyoshi Ootani, Kobe, JP;
Akira Nishikawa, Kobe, JP;
Noboru Hidaka, Kobe, JP;
Yuichi Nakajima, Kobe, JP;
Kiyoshi Ootani, Kobe, JP;
Akira Nishikawa, Kobe, JP;
Noboru Hidaka, Kobe, JP;
Fujitsu Ten Limited, Kobe-Shi, Hyogo, JP;
Abstract
An exciter for directly vibrating a board treated for dustproofing and heat dissipation, provided with a vibrator comprised of an outer yoke, a permanent magnet, and inner yoke, having a coil fixed inserted between the outer yoke and inner yoke, and having a coupler member for coupling the exciter to the surface of the board. The coupler member and vibrator are connected by an elastic member. A closed space is formed in the exciter by providing a sealing member between the outer yoke and coupler member. A through hole is formed in the outer yoke. Due to the vibration of the vibrator at the time of coil excitation, air convection is caused through the through hole between the closed space and the outside space.