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. 02, 2003
Filed:
Oct. 10, 2002
Mitsukazu Kuze, Osaka, JP;
Hiroyuki Takewa, Kaizuka, JP;
Kazue Satoh, Neyagawa, JP;
Mikio Iwasa, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
A damper A is provided with an inner peripheral waveform portion and an outer peripheral waveform portion . A flat portion is provided between the inner peripheral waveform portion and the outer peripheral waveform portion . When the damper is used for a loudspeaker, the flat portion does not elastically deform in a radial direction R, so that linearity of the damper A in a vibrating direction Z is ensured by elastic deformation of the waveform portions. In addition, a rolling phenomenon of a voice coil bobbin and a diaphragm can be suppressed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile