Title:
電気音響変換装置
Document Type and Number:
Japanese Patent JP4822156
Kind Code:
B2
Abstract:
The present invention provides a stable and excellent electro-acoustic transducer having simple constitution with which a vibration pole does not contact with stator poles by a repulsive force acting between the vibration pole and the stator poles and the vibration pole can be stably positioned in place between the two stator poles. A vibration pole is disposed between two stator poles, and surfaces of the vibration pole and the two stator poles facing to each other have electrostatically same polarity to generate an electrostatic repulsive force as a restorative force acting between the vibration pole and the stator poles, so that the vibration pole is positioned in place and electro-acoustic conversion is performed by the vibration displacement of the vibration pole with respect to the stator poles. Whereby, the vibration pole does not contact substantially with the stator poles and the vibration pole is stably positioned in place.
Inventors:
Hiroshi Okazawa
Application Number:
JP2005338330A
Publication Date:
November 24, 2011
Filing Date:
November 24, 2005
Export Citation:
Assignee:
Koichi Okazawa
International Classes:
H04R19/00
Domestic Patent References:
| JP58092199A | ||||
| JP56165490A | ||||
| JP58120400A | ||||
| JP6209499A | ||||
| JP11178098A | ||||
| JP2001197596A | ||||
| JP2005151267A |
Attorney, Agent or Firm:
Kazutoyo Watanabe