公开(公告)号：US09253297B2

公开(公告)日：2016-02-02

申请号：US13141934

申请日：2010-09-03

申请人： Yuuichi Abe ,  Kouji Furuuchi ,  Kousei Takiishi

发明人： Yuuichi Abe ,  Kouji Furuuchi ,  Kousei Takiishi

IPC分类号： H04M1/03 ,  H04R1/08

CPC分类号： H04M1/03 ,  H04R1/086

摘要： The present invention provides a sound-transmitting membrane for a microphone, to be disposed to a sound-collecting opening of the microphone so as to allow sound to transmit through the membrane while preventing a foreign matter from entering into the microphone through the opening. This membrane for a microphone prevents the entry of a foreign matter, such as fine dust and water vapor, that is difficult for conventional sound-transmitting membranes to block, and ensures the microphone performance. This membrane for a microphone is composed of a nonporous film or a multilayer membrane including a nonporous film, has a surface density of 30 g/m2 or less, and has a sound transmission loss of less than 3 dB in a frequency range of 300 to 4000 Hz.

摘要翻译： 本发明提供了一种用于麦克风的声音传送膜，其被设置在麦克风的声音收集开口上，以便允许声音透过膜传输，同时防止异物通过开口进入麦克风。 这种用于麦克风的隔膜防止了传统的隔音膜难以阻挡的诸如微细尘埃和水蒸气的异物进入，从而确保麦克风的性能。 该麦克风用膜由无孔膜或包含无孔膜的多层膜构成，表面密度为30g / m 2以下，在300〜300的频率范围内具有小于3dB的声音传输损失 4000 Hz。

公开(公告)号：US08272517B2

公开(公告)日：2012-09-25

申请号：US13009510

申请日：2011-01-19

申请人： Yuri Horie ,  Yuuichi Abe ,  Kouji Furuuchi ,  Kousei Takiishi

发明人： Yuri Horie ,  Yuuichi Abe ,  Kouji Furuuchi ,  Kousei Takiishi

IPC分类号： B01D39/00 ,  B01D29/00 ,  G10K11/00 ,  D02J1/06

CPC分类号： B32B5/32 ,  B32B27/322 ,  B32B2250/246 ,  B32B2264/0257 ,  B32B2305/026 ,  B32B2305/80 ,  B32B2307/10 ,  B32B2307/54 ,  B32B2307/558 ,  B32B2307/7265 ,  H04R31/003 ,  H04R2231/001 ,  H04R2307/025

摘要： The present invention provides a water-proof sound-transmitting membrane including a polytetrafluoroethylene (PTFE) porous membrane, in which the waterproofness is enhanced further with little lowering of the sound transmittance. The water-proof sound-transmitting membrane includes the PTFE porous membrane. The PTFE porous membrane includes a first porous layer, and a second porous layer stacked on and integrated with the first porous layer by a binding force acting between PTFE matrices. The first porous layer and the second porous layer each are composed of PTFE with a number-average molecular weight of 5.0×107 or more determined by a standard specific gravity method. At least one layer selected from the first porous layer and the second porous layer has an average pore diameter of 1 μm or less. The water-proof sound-transmitting membrane has a surface density of 1 g/m2 to 10 g/m2.

摘要翻译： 本发明提供一种防水透声膜，其包括聚四氟乙烯（PTFE）多孔膜，其中防水性进一步增强，声透射率几乎不降低。 防水透声膜包括PTFE多孔膜。 PTFE多孔膜包括第一多孔层和通过作用在PTFE基质之间的结合力堆叠在第一多孔层上并与其一体化的第二多孔层。 第一多孔层和第二多孔层各自由通过标准比重法测定的数均分子量为5.0×10 7以上的PTFE构成。 从第一多孔层和第二多孔层中选择的至少一层的平均孔径为1μm以下。 防水透声膜的表面密度为1g / m 2〜10g / m 2。

公开(公告)号：US20110143114A1

公开(公告)日：2011-06-16

申请号：US13009510

申请日：2011-01-19

申请人： Yuri HORIE ,  Yuuichi ABE ,  Kouji FURUUCHI ,  Kousei TAKIISHI

发明人： Yuri HORIE ,  Yuuichi ABE ,  Kouji FURUUCHI ,  Kousei TAKIISHI

IPC分类号： G10K13/00 ,  B32B37/14 ,  B32B38/00 ,  B32B38/12 ,  B32B3/26

CPC分类号： B32B5/32 ,  B32B27/322 ,  B32B2250/246 ,  B32B2264/0257 ,  B32B2305/026 ,  B32B2305/80 ,  B32B2307/10 ,  B32B2307/54 ,  B32B2307/558 ,  B32B2307/7265 ,  H04R31/003 ,  H04R2231/001 ,  H04R2307/025

摘要： The present invention provides a water-proof sound-transmitting membrane including a polytetrafluoroethylene (PTFE) porous membrane, in which the waterproofness is enhanced further with little lowering of the sound transmittance. The water-proof sound-transmitting membrane includes the PTFE porous membrane. The PTFE porous membrane includes a first porous layer, and a second porous layer stacked on and integrated with the first porous layer by a binding force acting between PTFE matrices. The first porous layer and the second porous layer each are composed of PTFE with a number-average molecular weight of 5.0×107 or more determined by a standard specific gravity method. At least one layer selected from the first porous layer and the second porous layer has an average pore diameter of 1 μm or less. The water-proof sound-transmitting membrane has a surface density of 1 g/m2 to 10 g/m2.

摘要翻译： 本发明提供一种防水透声膜，其包括聚四氟乙烯（PTFE）多孔膜，其中防水性进一步增强，声透射率几乎不降低。 防水透声膜包括PTFE多孔膜。 PTFE多孔膜包括第一多孔层和通过作用在PTFE基质之间的结合力堆叠在第一多孔层上并与其一体化的第二多孔层。 第一多孔层和第二多孔层各自由通过标准比重法测定的数均分子量为5.0×10 7以上的PTFE构成。 从第一多孔层和第二多孔层中选择的至少一层的平均孔径为1μm以下。 防水透声膜的表面密度为1g / m 2〜10g / m 2。

公开(公告)号：US08123839B2

公开(公告)日：2012-02-28

申请号：US12424907

申请日：2009-04-16

申请人： Yuuichi Abe ,  Masaaki Mori ,  Kousei Takiishi

发明人： Yuuichi Abe ,  Masaaki Mori ,  Kousei Takiishi

IPC分类号： B01D53/22

CPC分类号： B01D71/36 ,  B01D67/0027 ,  B01D67/003 ,  B01D67/0088 ,  B01D69/02 ,  B01D2323/02 ,  B01D2325/20 ,  B01D2325/36 ,  Y10T428/268

摘要： First, a mixture of a polytetrafluoroethylene fine powder and a liquid lubricant into a sheet-form body extending in a first direction. Next, the liquid lubricant is removed from the sheet-form body. Then, the sheet-form body is stretched by a factor of 40 to 250 in the longitudinal direction at a temperature equal to or higher than a melting point of polytetrafluoroethylene, and the stretched sheet-form body is further stretched by a factor of 3 to 40 in the width direction. Thus, a highly air-permeable porous polytetrafluoroethylene membrane is obtained.

摘要翻译： 首先，将聚四氟乙烯细粉末和液体润滑剂的混合物分散成沿第一方向延伸的片状体。 接下来，从片状体中除去液体润滑剂。 然后，在等于或高于聚四氟乙烯的熔点的温度下，将片状体在纵向上拉伸40至250倍，拉伸的片状体进一步拉伸3倍至 40在宽度方向。 因此，获得高透气性的多孔聚四氟乙烯膜。

公开(公告)号：US20110255728A1

公开(公告)日：2011-10-20

申请号：US13141934

申请日：2010-09-03

申请人： Yuuichi Abe ,  Kouji Furuuchi ,  Kousei Takiishi

发明人： Yuuichi Abe ,  Kouji Furuuchi ,  Kousei Takiishi

IPC分类号： H04R11/04

CPC分类号： H04M1/03 ,  H04R1/086

摘要： The present invention provides a sound-transmitting membrane for a microphone, to be disposed to a sound-collecting opening of the microphone so as to allow sound to transmit through the membrane while preventing a foreign matter from entering into the microphone through the opening. This membrane for a microphone prevents the entry of a foreign matter, such as fine dust and water vapor, that is difficult for conventional sound-transmitting membranes to block, and ensures the microphone performance. This membrane for a microphone is composed of a nonporous film or a multilayer membrane including a nonporous film, has a surface density of 30 g/m2 or less, and has a sound transmission loss of less than 3 dB in a frequency range of 300 to 4000 Hz.

摘要翻译： 本发明提供了一种用于麦克风的声音传送膜，其被设置在麦克风的声音收集开口上，以便在防止异物通过开口进入麦克风期间允许声音透过膜传播。 这种用于麦克风的隔膜防止了传统的隔音膜难以阻挡的诸如微细尘埃和水蒸气的异物进入，从而确保麦克风的性能。 该麦克风用膜由无孔膜或包含无孔膜的多层膜构成，表面密度为30g / m 2以下，在300〜300的频率范围内具有小于3dB的声音传输损失 4000 Hz。

公开(公告)号：US20090277141A1

公开(公告)日：2009-11-12

申请号：US12424907

申请日：2009-04-16

申请人： Yuuichi ABE ,  Masaaki MORI ,  Kousei TAKIISHI

发明人： Yuuichi ABE ,  Masaaki MORI ,  Kousei TAKIISHI

IPC分类号： C08F214/26 ,  B29C55/02 ,  B01D39/16

CPC分类号： B01D71/36 ,  B01D67/0027 ,  B01D67/003 ,  B01D67/0088 ,  B01D69/02 ,  B01D2323/02 ,  B01D2325/20 ,  B01D2325/36 ,  Y10T428/268

摘要： First, a mixture of a polytetrafluoroethylene fine powder and a liquid lubricant into a sheet-form body extending in a first direction. Next, the liquid lubricant is removed from the sheet-form body. Then, the sheet-form body is stretched by a factor of 40 to 250 in the longitudinal direction at a temperature equal to or higher than a melting point of polytetrafluoroethylene, and the stretched sheet-form body is further stretched by a factor of 3 to 40 in the width direction. Thus, a highly air-permeable porous polytetrafluoroethylene membrane is obtained.

摘要翻译： 首先，将聚四氟乙烯细粉末和液体润滑剂的混合物分散成沿第一方向延伸的片状体。 接下来，从片状体中除去液体润滑剂。 然后，在等于或高于聚四氟乙烯的熔点的温度下，将片状体在纵向上拉伸40至250倍，拉伸的片状体进一步拉伸3倍至 40在宽度方向。 因此，获得高透气性的多孔聚四氟乙烯膜。