公开(公告)号：US5073946A

公开(公告)日：1991-12-17

申请号：US441918

申请日：1989-11-28

申请人： Katsuaki Satoh ,  Kazue Sato ,  Kousaku Murata ,  Tsuneo Tanaka ,  Shuji Saiki ,  Satoshi Takayama ,  Hiroyuki Takewa ,  Mitsuhiko Serikawa ,  Seiichi Ishikawa ,  Sawako Usuki ,  Yoichi Kimura ,  Shuichi Obata

发明人： Katsuaki Satoh ,  Kazue Sato ,  Kousaku Murata ,  Tsuneo Tanaka ,  Shuji Saiki ,  Satoshi Takayama ,  Hiroyuki Takewa ,  Mitsuhiko Serikawa ,  Seiichi Ishikawa ,  Sawako Usuki ,  Yoichi Kimura ,  Shuichi Obata

IPC分类号： H04R1/28 ,  H04R1/34 ,  H04R7/04

CPC分类号： H04R1/2834 ,  H04R1/345 ,  H04R7/04

摘要： A speaker which is thin but which is capable of providing high-fidelity reproduction and ensuring a suitable level of sound pressure even when it is brought close to a wall. A closed chamber is formed behind one part of a disphragm mounted in an enclosure, and an open chamber is formed behind another part of the diaphragm. At least one voice coil driver unit is connected to the diaphragm. The phase difference between sounds radiated from the front and rear surfaces of the diaphragm is increased as large as possible by using an acoustic duct for the sound radiated through the open chamber, thereby minimizing cancellation of sounds and improving the sound pressure level.

公开(公告)号：US08542861B2

公开(公告)日：2013-09-24

申请号：US12523201

申请日：2008-10-28

申请人： Shuji Saiki ,  Hiroyuki Takewa

发明人： Shuji Saiki ,  Hiroyuki Takewa

IPC分类号： H04R11/02

CPC分类号： H04R9/027 ,  H04R7/04 ,  H04R7/20 ,  H04R7/24 ,  H04R9/022 ,  H04R9/043 ,  H04R9/047 ,  H04R9/06 ,  H04R2231/003 ,  H04R2307/207

摘要： A loudspeaker includes a diaphragm that vibrates back and forth to emit a sound, a magnetic circuit that is provided on a rear side of the diaphragm and has a magnetic gap on a diaphragm side, and a voice coil that is directly or indirectly joined to the diaphragm and disposed within the magnetic gap. A magnetic fluid is loaded within the magnetic gap. Also, a plurality of first edge pieces are provided at different positions in an outer circumferential portion of the diaphragm for vibratably supporting the diaphragm, each of the first edge pieces having a non-linear cross-sectional shape.

摘要翻译： 扬声器包括来回振动以发出声音的振动膜，设置在隔膜的后侧并且在隔膜侧具有磁隙的磁路，以及直接或间接地连接到隔膜的音圈 隔膜并设置在磁隙内。 磁性流体被加载在磁隙内。 此外，在隔膜的外周部分的不同位置处设置多个第一边缘件，用于可振动地支撑隔膜，每个第一边缘件具有非线性横截面形状。

公开(公告)号：US06700987B2

公开(公告)日：2004-03-02

申请号：US09934225

申请日：2001-08-21

申请人： Mitsukazu Kuze ,  Shuji Saiki ,  Hiroyuki Takewa

发明人： Mitsukazu Kuze ,  Shuji Saiki ,  Hiroyuki Takewa

IPC分类号： H04R2500

CPC分类号： H04R7/12 ,  H04R7/20 ,  H04R2307/201

摘要： A loudspeaker includes: a frame; a vibrating section including a diaphragm having an internal periphery and an external periphery, a voice coil attached to the internal periphery of the diaphragm, a spider which connects the voice coil to the frame, and a dust cap attached to the internal periphery of the diaphragm; and a surround which connects the external periphery of the diaphragm to the frame, wherein the ratio between the weight of the vibrating section and the weight of the surround is 0.9:1 to 1.5:1.

摘要翻译： 扬声器包括：一个框架; 振动部分，包括具有内周和外周的隔膜，安装在隔膜的内周的音圈，将音圈连接到框架的一个蜘蛛，以及安装在隔膜的内周的防尘帽 ; 以及将隔膜的外周连接到框架的环绕部，其中，振动部的重量与周围的重量之间的比例为0.9:1〜1.5:1。

公开(公告)号：US08498442B2

公开(公告)日：2013-07-30

申请号：US12523201

申请日：2008-10-28

申请人： Shuji Saiki ,  Hiroyuki Takewa

发明人： Shuji Saiki ,  Hiroyuki Takewa

IPC分类号： H04R11/02

摘要： A loudspeaker includes a diaphragm that vibrates back and forth to emit a sound, a magnetic circuit that is provided on a rear side of the diaphragm and has a magnetic gap on a diaphragm side, and a voice coil that is directly or indirectly joined to the diaphragm and disposed within the magnetic gap. A magnetic fluid is loaded within the magnetic gap. Also, a plurality of first edge pieces are provided at different positions in an outer circumferential portion of the diaphragm for vibratably supporting the diaphragm, each of the first edge pieces having a non-linear cross-sectional shape.

公开(公告)号：US06836551B2

公开(公告)日：2004-12-28

申请号：US09816000

申请日：2001-03-23

申请人： Mitsukazu Kuze ,  Shuji Saiki ,  Hiroyuki Takewa ,  Satoshi Koura

发明人： Mitsukazu Kuze ,  Shuji Saiki ,  Hiroyuki Takewa ,  Satoshi Koura

IPC分类号： H04R2500

CPC分类号： H04R9/04 ,  H04R9/06

摘要： A loudspeaker includes: a bottom plate; a center pole provided upwardly from the bottom plate; a yoke surrounding the center pole and having a plurality of slits; a magnet for providing a magnetic flux for the center pole and the yoke; a coil provided between the center pole and the yoke; a first annular member for supporting the coil; a plurality of support members for supporting the first annular member, the plurality of support members being inserted into the plurality of slits; and a diaphragm supported by the plurality of support members, wherein upper faces of the plurality of support members gradually decrease in height in a direction away from the first annular member, and wherein a lower face of the coil is located below a position at which the diaphragm is supported by the plurality of support members.

摘要翻译： 扬声器包括：底板; 从底板向上设置的中心杆; 围绕中心极并具有多个狭缝的轭; 用于为中心极和轭提供磁通的磁体; 设置在中心极和轭之间的线圈; 用于支撑线圈的第一环形构件; 用于支撑所述第一环形构件的多个支撑构件，所述多个支撑构件插入到所述多个狭缝中; 以及由所述多个支撑构件支撑的隔膜，所述多个支撑构件的上表面在远离所述第一环形构件的方向上逐渐降低高度，并且其中所述线圈的下表面位于所述第一环形构件的下方， 隔膜由多个支撑构件支撑。

公开(公告)号：US5150418A

公开(公告)日：1992-09-22

申请号：US688427

申请日：1991-04-22

申请人： Kazuki Honda ,  Hiroyuki Takewa ,  Shuji Saiki ,  Kazue Satoh

发明人： Kazuki Honda ,  Hiroyuki Takewa ,  Shuji Saiki ,  Kazue Satoh

IPC分类号： H04R1/28 ,  H04R9/06

CPC分类号： H04R1/2819 ,  H04R1/2857 ,  H04R9/063 ,  H04R1/2834

摘要： In a speaker system, the rearward area of a diaphragm is separated into two acoustic regions. One of the two acoustic regions is a rear opening type and the other is a base-reflex type. An acoustic mass, such as a port or a passive radiator, is located between the first and second acoustic regions for providing a phase inversion characteristic.

公开(公告)号：US20110044489A1

公开(公告)日：2011-02-24

申请号：US12523201

申请日：2008-10-28

申请人： Shuji Saiki ,  Hiroyuki Takewa

发明人： Shuji Saiki ,  Hiroyuki Takewa

IPC分类号： H04R1/02 ,  H04R1/00

CPC分类号： H04R9/027 ,  H04R7/04 ,  H04R7/20 ,  H04R7/24 ,  H04R9/022 ,  H04R9/043 ,  H04R9/047 ,  H04R9/06 ,  H04R2231/003 ,  H04R2307/207

摘要： A loudspeaker according to the present invention includes: a diaphragm that vibrates back and forth to emit a sound; a magnetic circuit that is provided on a rear side of the diaphragm and has a magnetic gap on a diaphragm side; a voice coil that is directly or indirectly joined to the diaphragm and disposed within the magnetic gap; a magnetic fluid that is loaded within the magnetic gap; and a plurality of first edge pieces that are provided at different positions in an outer circumferential portion of the diaphragm for vibratably supporting the diaphragm, each of the first edge pieces having a non-linear cross-sectional shape.

摘要翻译： 根据本发明的扬声器包括：振动来回振动以发出声音; 磁路，其设置在隔膜的后侧，并且在隔膜侧具有磁隙; 直接或间接地连接到隔膜并设置在磁隙内的音圈; 装载在磁隙内的磁性流体; 以及多个第一边缘件，其设置在所述隔膜的外周部分中的不同位置处，用于可振动地支撑所述隔膜，每个所述第一边缘件具有非线性横截面形状。

公开(公告)号：US4803242A

公开(公告)日：1989-02-07

申请号：US80923

申请日：1987-08-03

申请人： Kousaku Murata ,  Satoshi Takayama ,  Hiroyuki Takewa ,  Shuji Saiki ,  Tsuneo Tanaka

发明人： Kousaku Murata ,  Satoshi Takayama ,  Hiroyuki Takewa ,  Shuji Saiki ,  Tsuneo Tanaka

IPC分类号： H04R7/02 ,  C08L1/02 ,  C08L5/08 ,  C08L51/02 ,  H04R9/06

CPC分类号： H04R7/02

摘要： A diaphragm for loudspeakers comprises chitin as a natural high polymeric material having a large value of Young's modulus and kraft pulp having large mechanical internal loss. Therefore, the deformation and the partial vibrations of the diaphragm during diaphragm operation do not come out due to the use of the chitin, because the flexural rigidity of the diaphragm is considerably large. Mechanical internal loss is also large owing to the use of the kraft pulp. As a result, it is possible to obtain a loudspeaker which has little fluctuation in frequency response, and which provides a superior sound pressure-frequency response, a superior distortion factor and a superior phase response.

摘要翻译： 用于扬声器的隔膜包括甲壳素，其具有大的杨氏模量值和牛皮纸浆具有大的机械内部损耗的天然高分子材料。 因此，由于膜片的弯曲刚性相当大，因此膜片操作期间膜片的变形和部分振​​动由于使用甲壳素而不会出现。 由于使用牛皮纸浆，机械内部损失也很大。 结果，可以获得频率响应波动小的扬声器，并且提供优异的声压频率响应，优异的失真因子和优异的相位响应。

公开(公告)号：US08422727B2

公开(公告)日：2013-04-16

申请号：US12181073

申请日：2008-07-28

申请人： Hiroyuki Takewa

发明人： Hiroyuki Takewa

IPC分类号： H04R1/00 ,  H04R9/06 ,  H04R11/02

CPC分类号： H04R9/06

摘要： An electro-acoustical transducer of the present invention includes: a diaphragm of an elongated shape; a first magnet of a parallelepiped shape which is situated at a side of one principal surface of the diaphragm such that long sides thereof are in parallel with long sides of the diaphragm, and which is polarized in a short side direction to form a magnetic gap; a second magnet of a parallelepiped shape which is situated next to the first magnet in the short side direction of the diaphragm, such that long sides thereof are in parallel with the long sides of the diaphragm, and which is polarized toward a direction in a manner opposite to the first magnet so as to form a magnetic gap; and a coil of an elongated ring shape which is situated on the diaphragm such that long sides thereof are situated in the magnetic gaps.

摘要翻译： 本发明的电声换能器包括：细长形状的隔膜; 平行六面体形状的第一磁体位于隔膜的一个主表面的一侧，使得其长边与隔膜的长边平行，并且在短边方向上极化以形成磁隙; 平行六面体形状的第二磁体，其在隔膜的短边方向上位于第一磁体旁边，使得其长边与隔膜的长边平行，并且朝向该方向的方向偏振 与第一磁体相对以形成磁隙; 以及细长环状的线圈，其位于隔膜上，使得其长边位于磁隙中。

公开(公告)号：US08094864B2

公开(公告)日：2012-01-10

申请号：US12160649

申请日：2007-04-09

申请人： Atsushi Inaba ,  Hiroyuki Takewa

发明人： Atsushi Inaba ,  Hiroyuki Takewa

IPC分类号： H04R1/00

CPC分类号： H04R7/20 ,  H04R2307/207

摘要： A diaphragm unit is arranged to be used in a loudspeaker including a frame. The diaphragm includes a diaphragm and an edge joined to an outer periphery of the diaphragm. The diaphragm extends in a longitudinal direction and has a first center line extends along the longitudinal direction. The edge has an outer periphery being arranged to join to the frame, and an inner periphery joined to the outer periphery of the diaphragm. The edge has a convex surface having substantially a semi-circular cross section. The convex surface of the edge has grooves provided therein. The grooves extend from the inner periphery of the edge to the outer periphery of the edge. The grooves have cross sections each having a U-shape or a V-shape, and are arranged symmetrically about the first center line of the diaphragm. This diaphragm unit provides an elongated loudspeaker reproducing bass sounds with small distortions.

摘要翻译： 隔膜单元布置成用于包括框架的扬声器中。 隔膜包括隔膜和连接到隔膜外周的边缘。 隔膜沿纵向方向延伸并且具有沿着纵向方向延伸的第一中心线。 所述边缘具有外周边，所述外周被布置为连接到所述框架，以及连接到所述隔膜的外周的内周。 边缘具有基本上具有半圆形横截面的凸形表面。 边缘的凸面具有设置在其中的凹槽。 凹槽从边缘的内周边延伸到边缘的外周边。 凹槽具有各自具有U形或V形的横截面，并且围绕隔膜的第一中心线对称布置。 这个隔膜单元提供了一个细长的扬声器，重现低音，具有很小的失真。