Patents by Inventor Haruhisa Tanabe

Haruhisa Tanabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Condenser microphone and method for manufacturing the same
    Patent number: 7620191
    Abstract: A condenser microphone includes a housing and a microphone unit arranged within the housing. The microphone unit includes an annular retainer oriented in confronting relation to the front end wall of the housing, a movable diaphragm connected to the annular retainer, an annular spacer connected to one side of the movable diaphragm opposite the annular retainer, a substrate including a back electrode oriented in confronting relation to the movable diaphragm and having an electret thereon, and a printed circuit board having electronic components. The back electrode is operatively associated with the movable diaphragm to constitute a condenser. The condenser has a variable electric capacitance. The electronic components of the printed circuit board develop an electric signal in response to a change in the electrical capacitance between the movable diaphragm and the back electrode. A conductive adhesive is employed to sealingly hold the annular retainer against the front end wall of the housing.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 17, 2009
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Atsushi Kanemaru
  • Condenser microphone and method for manufacturing the same
    Publication number: 20060140423
    Abstract: A condenser microphone includes a housing and a microphone unit arranged within the housing. The microphone unit includes an annular retainer oriented in confronting relation to the front end wall of the housing, a movable diaphragm connected to the annular retainer, an annular spacer connected to one side of the movable diaphragm opposite the annular retainer, a substrate including a back electrode oriented in confronting relation to the movable diaphragm and having an electret thereon, and a printed circuit board having electronic components. The back electrode is operatively associated with the movable diaphragm to constitute a condenser. The condenser has a variable electric capacitance. The electronic components of the printed circuit board develop an electric signal in response to a change in the electrical capacitance between the movable diaphragm and the back electrode. A conductive adhesive is employed to sealingly hold the annular retainer against the front end wall of the housing.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 29, 2006
    Inventors: Haruhisa Tanabe, Atsushi Kanemaru
  • Condenser microphone
    Patent number: 6947568
    Abstract: A back plate having a stationary back electrode is secured to a substrate. A diaphragm electrode is mounted on the back plate interposing a spacer. A frame having a sound collecting hole is mounted on the diaphragm electrode.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: September 20, 2005
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Megumi Horiuchi
  • Electret microphone
    Patent number: 6898292
    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.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: May 24, 2005
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Koji Takayama
  • Electret microphone
    Patent number: 6744896
    Abstract: A back plate having a recess in an underside thereof and a stationary back electrode at a central portion thereof is secured to a substrate, a spacer having an opening is mounted on the back plate so as to form a vacancy between an inside wall of the opening and a periphery of the stationary back electrode. A diaphragm electrode is provided on the spacer. The back plate has vents in the vacancy so as to communicate a space between the back electrode and the diaphragm electrode to a space in the recess of the back plate.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: June 1, 2004
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Keiji Watanabe, Koji Takayama
  • Condenser microphone and method for manufacturing condenser microphones
    Publication number: 20040057595
    Abstract: A back plate having a stationary back electrode is secured to a substrate. A diaphragm electrode is mounted on the back plate interposing a spacer. A frame having a sound collecting hole is mounted on the diaphragm electrode.
    Type: Application
    Filed: September 24, 2003
    Publication date: March 25, 2004
    Applicant: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Megumi Horiuchi
  • Method for manufacturing condenser microphones
    Patent number: 6708387
    Abstract: A back plate having a stationary back electrode is secured to a substrate. A diaphragm electrode is mounted on the back plate interposing a spacer. A frame having a sound collecting hole is mounted on the diaphragm electrode.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: March 23, 2004
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Megumi Horiuchi
  • Electret microphone
    Publication number: 20030068055
    Abstract: A back plate having a recess in an underside thereof and a stationary back electrode at a central portion thereof is secured to a substrate, a spacer having an opening is mounted on the back plate so as to form a vacancy between an inside wall of the opening and a periphery of the stationary back electrode. A diaphragm electrode is provided on the spacer. The back plate has vents in the vacancy so as to communicate a space between the back electrode and the diaphragm electrode to a space in the recess of the back plate.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 10, 2003
    Applicant: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Keiji Watanabe, Koji Takayama
  • Condenser microphone and method for manufacturing condenser microphones
    Publication number: 20020172383
    Abstract: A back plate having a stationary back electrode is secured to a substrate. A diaphragm electrode is mounted on the back plate interposing a spacer. A frame having a sound collecting hole is mounted on the diaphragm electrode.
    Type: Application
    Filed: May 10, 2002
    Publication date: November 21, 2002
    Applicant: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Megumi Horiuchi
  • Electret microphone
    Publication number: 20020172385
    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.
    Type: Application
    Filed: May 10, 2002
    Publication date: November 21, 2002
    Applicant: Citizen Electronics Co., Ltd.
    Inventors: Haruhisa Tanabe, Koji Takayama
  • Microphone
    Patent number: D476976
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: July 8, 2003
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Haruhisa Tanabe