Invention Grant
- Patent Title: Vibration-generating device and electronic apparatus using the same
- Patent Title (中): 振动发生装置及使用其的电子装置
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Application No.: US10546037Application Date: 2004-02-10
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Publication No.: US07692345B2Publication Date: 2010-04-06
- Inventor: Shun Kayama , Yukiko Shimizu , Toshinori Yamasue , Hiroshi Azuma , Hirokazu Kitamura
- Applicant: Shun Kayama , Yukiko Shimizu , Toshinori Yamasue , Hiroshi Azuma , Hirokazu Kitamura
- Applicant Address: JP Tokyo JP Kyoto-shi
- Assignee: Sony Corporation,Omron Corporation
- Current Assignee: Sony Corporation,Omron Corporation
- Current Assignee Address: JP Tokyo JP Kyoto-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2003-039969 20030218
- International Application: PCT/JP2004/001399 WO 20040210
- International Announcement: WO2004/075377 WO 20040902
- Main IPC: H02K7/06
- IPC: H02K7/06

Abstract:
The present invention is directed to a vibration generating device used for mobile telephone, etc., which comprises a rotor (110), and a stator (120) for rotatably supporting the rotor, and serving to rotate the rotor to thereby generate vibration. The rotor comprises a bearing sleeve (160) consisting of resin molded material and rotatably attached to a fixed shaft (124) provided at the stator, a magnet (170) and a weight (180) positioned in eccentric state with respect to the bearing sleeve, wherein the bearing sleeve and the magnet are formed in the state where they are integrated by material resin of the bearing sleeve. The stator comprises, in addition to the fixed shaft, a bottom plate (121), a cover plate (122) and a coil (140) disposed in a manner opposite to the magnet, whereby the coil is energized so that the rotor is rotated, and the bearing sleeve is rotated in the state in contact with the bottom plate or the cover plate by attractive force exerted between the magnet and the bottom plate or the cover plate.
Public/Granted literature
- US20060250036A1 Vibration-generating device and electronic apparatus using the same Public/Granted day:2006-11-09
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