Title:
エレクトレットコンデンサマイクロフォン
Document Type and Number:
Japanese Patent JP4528461
Kind Code:
B2
Abstract:
An electret microphone comprises a back plate having a stationary back electrode and secured to a substrate. An electret layer is formed on the stationary back electrode and a spacer is mounted on the back plate. A diaphragm electrode is mounted on the spacer.
Inventors:
Haruhisa Tanabe
Takayama Torasei
Takayama Torasei
Application Number:
JP2001147099A
Publication Date:
August 18, 2010
Filing Date:
May 16, 2001
Export Citation:
Assignee:
Citizen Electronics Co., Ltd.
Audio Technica Co., Ltd.
Audio Technica Co., Ltd.
International Classes:
H04R19/01; H01G7/02; H04R19/04
Domestic Patent References:
| JP63052600A | ||||
| JP2000050394A | ||||
| JP2000261892A | ||||
| JP2001069596A |
Attorney, Agent or Firm:
Gojong Hiroaki