Invention Grant
- Patent Title: Vibration generator
- Patent Title (中): 振动发生器
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Application No.: US13790775Application Date: 2013-03-08
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Publication No.: US09025796B2Publication Date: 2015-05-05
- Inventor: Keisuke Furuichi , Tomohiro Akanuma
- Applicant: Nidec Seimitsu Corporation
- Applicant Address: JP Ueda-shi
- Assignee: Nidec Seimitsu Corporation
- Current Assignee: Nidec Seimitsu Corporation
- Current Assignee Address: JP Ueda-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-093309 20120416
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04M19/04 ; H04R1/00 ; H02K41/00

Abstract:
A vibration generator includes a coil arranged to generate magnetic fields, a ring-shaped yoke arranged to amplify an electromagnetic force generated by the magnetic fields in cooperation with the coil, a vibrating body arranged radially inward of the coil to move in a thrust direction, a ring-shaped magnet arranged in an outer peripheral portion of the vibrating body and opposed to the coil, and a spring arranged to support the vibrating body on at least one side of the vibrating body in thrust-direction.
Public/Granted literature
- US20130272550A1 VIBRATION GENERATOR Public/Granted day:2013-10-17
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