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Class Information
Number: 181/169
Name: Acoustics > Diaphragm > Critically defined material or coating > Fibrous material
Description: Subject matter wherein the material of which the diaphragm is made consists of or includes fibers.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8496086 Membrane having a multipart structure Jul. 30, 2013
8406452 Diaphragm for speaker, speaker using the diaphragm, and system using the speaker Mar. 26, 2013
8340342 Diaphragm for speaker, speaker using the diaphragm, electronic device using the speaker, and speaker-mounted device Dec. 25, 2012
8340341 Coated speaker dome Dec. 25, 2012
8320604 Composite loudspeaker cone Nov. 27, 2012
8235168 Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker Aug. 7, 2012
8230966 Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker Jul. 31, 2012
8177021 Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker May. 15, 2012
8122996 Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker Feb. 28, 2012
8002079 Diaphragm for speaker, speaker using the diaphragm for speaker, and process for producing the diaphragm for speaker Aug. 23, 2011
7913808 Waterproofing loudspeaker cones Mar. 29, 2011
7849958 Vibration system part for speaker device and manufacturing method thereof Dec. 14, 2010
7775319 Diaphragm for speaker and manufacturing method therefor Aug. 17, 2010
7708111 Acoustic diaphragm and method for manufacturing an acoustic diaphragm May. 4, 2010
7686128 Speaker diaphragm and speaker Mar. 30, 2010
7678218 Production method of an electroacoustic transducer diaphragm, electroacoustic transducer diaphragm, and an electroacoustic transducer Mar. 16, 2010
7677356 Acoustic material and method for making the same Mar. 16, 2010
7631723 Loudspeaker diaphragm and method for manufacturing the same Dec. 15, 2009
7582191 Process for producing loudspeaker diaphragm, loudspeaker diaphragm produced by the process, and loudspeaker with the diaphragm Sep. 1, 2009
7527124 Loudspeaker diaphragm May. 5, 2009
7467686 Speaker diaphragms, manufacturing methods of the same, and dynamic speakers Dec. 23, 2008
7344001 Speaker diaphragm and speaker structure Mar. 18, 2008
7311174 Cloth for loudspeaker diaphragm, loudspeaker diaphragm, and loudspeaker Dec. 25, 2007
7118649 Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker Oct. 10, 2006
6956957 Loudspeakers Oct. 18, 2005
6871724 Electroacoustic transducer frame and method of making the same Mar. 29, 2005
6845169 Speaker parts and method of manufacturing same Jan. 18, 2005
6814181 Electrically conductive damper device for speaker Nov. 9, 2004
6790506 Carbon fiber layer for acoustic diaphragm Sep. 14, 2004
6742622 Molded foam resin, process for forming the same and speaker diaphragm consisting of the same Jun. 1, 2004
6740202 Speaker diaphragm and method of manufacturing same May. 25, 2004
6590993 Panel-shaped loudspeaker Jul. 8, 2003
6585076 Cardable fiber blend and a moldable fiber batt and the process for making a moldable fiber batt Jul. 1, 2003
6554962 Loudspeaker diaphragm Apr. 29, 2003
6390232 Speaker cone assembly May. 21, 2002
6378649 Speaker member and manufacturing method thereof Apr. 30, 2002
6334504 Molded foam resin, process for forming the same and speaker diaphragm consisting of the same Jan. 1, 2002
6332508 Loudspeaker and method for producing the same Dec. 25, 2001
6237716 Standard-sized vibrating diaphragm speaker structure May. 29, 2001
6148953 Loudspeaker component and resin composition therefor Nov. 21, 2000
6097829 Fiber-honeycomb-fiber sandwich speaker diaphragm and method Aug. 1, 2000
6039146 Method of manufacturing speaker diaphragm Mar. 21, 2000
6039145 Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same Mar. 21, 2000
6037411 Acoustic vibrational material of fiber reinforcement with epoxy resin and epoxy-reactive polybutadiene Mar. 14, 2000
5920040 Speaker diaphragm Jul. 6, 1999
5903658 Loudspeaker and a method for producing the same May. 11, 1999
5878150 Damper for a loudspeaker and a method for producing the same Mar. 2, 1999
5875253 Loudspeaker and a method for producing the same Feb. 23, 1999
5796054 Loudspeaker diaphragm Aug. 18, 1998
5793002 Loudspeaker vibrating diaphragm and methods for its production Aug. 11, 1998

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