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1. 发明授权

US4042438A Method of assembling a diaphragm assembly for an electro-acoustic transducer 失效
标题翻译：组装电声换能器的隔膜组件的方法
公开(公告)号：US4042438A
公开(公告)日：1977-08-16
申请号：US595438
申请日：1975-07-14
申请人： Hirotake Kawakami , Kantaro Takada , Toru Fukumoto
发明人： Hirotake Kawakami , Kantaro Takada , Toru Fukumoto
IPC分类号： H04R7/22 , H04R7/18 , H04R19/00 , H04R19/01 , H04R31/00 , C09J7/02 , H04R7/06
CPC分类号： H04R31/006 , H04R19/01 , H04R31/003 , H04R7/18 , H04R2307/029 , Y10T29/49226 , Y10T29/49575
摘要： In assembling at least one metal frame in abutting supporting relation to a diaphragm to form a diaphragm assembly for an electro-acoustic transducer, for example, as in a microphone or headphone, the diaphragm, which may be an electret, is formed at least in part of a thermoplastic resin so as to provide the latter at each surface of the diaphragm which, in the abutting supporting relation, is engaged by a surface of a metal frame, and the frame or frames and the diaphragm are pressed together in the desired abutting supporting relation while each metal frame is heated so that heat is transmitted through the latter to melt the thermoplastic resin at the engaged surfaces of the diaphragm and frame or frames, whereupon the heating of the frame or frames is halted so that the thermoplastic resin hardens to bond together the diaphragm and frame or frames in the desired abutting supporting relation.
摘要翻译：在将至少一个金属框架组装在与隔膜邻接的支撑关系中以形成用于电声换能器的隔膜组件时，例如像麦克风或耳机那样，可以将驻极体上的隔膜至少形成在热塑性树脂的一部分，以便在隔膜的每个表面上提供后者，所述表面在邻接支撑关系中由金属框架的表面接合，并且框架或框架和隔膜以期望的邻接支撑关系，同时加热每个金属框架，使得热量透过该金属框架，以在隔膜和框架或框架的接合表面处熔化热塑性树脂，由此停止框架或框架的加热，使得热塑性树脂硬化将膜片和框架或框架以期望的邻接支撑关系结合在一起。

2. 发明授权

US3942029A Electrostatic transducer 失效
标题翻译：静电传感器
公开(公告)号：US3942029A
公开(公告)日：1976-03-02
申请号：US489400
申请日：1974-07-17
申请人： Hirotake Kawakami , Kantaro Takada
发明人： Hirotake Kawakami , Kantaro Takada
IPC分类号： H04R19/00 , H04R19/01
CPC分类号： H04R19/01
摘要： An electrostatic transducer comprising a vibrating plate or electret diaphragm which has a monocharge on its surface and including a pair of back electrodes clamping the electret therebetween and including an electrically conductive electrostatic shield covering the back electrodes so as to increase the fidelity and life of the transducer.
摘要翻译：一种静电换能器，包括振动板或驻极体膜片，其表面上具有单电荷，并且包括夹在其间的驻极体的一对背电极，并且包括覆盖背电极的导电静电屏蔽，以增加换能器的保真度和寿命。

3. 发明授权

US3941946A Electrostatic transducer assembly 失效
标题翻译：静电传感器组件
公开(公告)号：US3941946A
公开(公告)日：1976-03-02
申请号：US367579
申请日：1973-06-06
申请人： Hirotake Kawakami , Atsushi Matsuda , Kazumasa Takahashi
发明人： Hirotake Kawakami , Atsushi Matsuda , Kazumasa Takahashi
IPC分类号： H04R19/00 , H04R19/02
CPC分类号： H04R19/02
摘要： An electrostatic transducer assembly including a pair of transducer units, each unit having a pair of plates with a conductive coating and a diaphragm disposed between the plates. Both diaphragms are biased by a single source and the electrode plates are energized in such a way as to move the diaphragms in a common direction.
摘要翻译：一种包括一对换能器单元的静电换能器组件，每个单元具有一对具有导电涂层的板和设置在板之间的隔膜。两个隔膜由单个源偏置，并且电极板以使得隔膜沿共同方向移动的方式通电。

4. 发明授权

US3956598A Moving coil pickup cartridge with diaphragm coupling 失效
标题翻译：带隔膜联轴器的移动线圈拾取盒
公开(公告)号：US3956598A
公开(公告)日：1976-05-11
申请号：US533663
申请日：1974-12-17
申请人： Hirotake Kawakami , Shokichi Tatara
发明人： Hirotake Kawakami , Shokichi Tatara
IPC分类号： H04R9/12 , H04R9/16
CPC分类号： H04R9/16
摘要： A pickup cartridge having a cantilever, a stylus attached to one end thereof, a permanent magnet, a plate and a pole piece made of magnetic material and coupled to the magnet forming a magnetic circuit, a magnetic gap formed between the plate and pole piece, a diaphragm fixed to the plate, a coil attached to one surface of the diaphragm and disposed in the magnetic gap, and an arm contacting with the other surface of the diaphragm and moving together with the cantilever, in which the coil is displaced in the magnetic gap through the arm and diaphragm in response to displacement of the cantilever to induce a voltage.
摘要翻译：具有悬臂的拾取盒，其一端附接的触针，永磁体，板和由磁性材料制成的极片，并与形成磁路的磁体相连，形成在板和极片之间的磁隙，固定在板上的隔膜，安装在隔膜的一个表面并设置在磁隙中的线圈，以及与隔膜的另一个表面接触并与悬臂一起移动的臂，线圈在磁体中移动通过臂和隔膜的间隙响应于悬臂的位移以引起电压。

5. 发明授权

US3987255A Pickup-cartridge with moving magnet 失效
标题翻译：带移动磁铁的皮卡盒
公开(公告)号：US3987255A
公开(公告)日：1976-10-19
申请号：US533489
申请日：1974-12-17
申请人： Hirotake Kawakami , Shokichi Tatara
发明人： Hirotake Kawakami , Shokichi Tatara
IPC分类号： H04R11/08 , H04R11/12
CPC分类号： H04R11/12
摘要： A pickup cartridge having a cantilever with a stylus on the end and a magnet on the other end, with the magnet supported for pivotal motion and having a first magnetic means comprising a yoke with opposite ends of the first magnetic means mounted adjacent opposite sides of the north pole of the magnet, and a second magnetic means comprising a yoke having opposite ends adjacent opposite sides of the south pole of the magnet, and wherein portions of the first and second magnetic means are magnetically coupled together such that magnetic flux can freely travel between the first and second magnetic means, and wherein a pair of coils are mounted on one of the magnetic means such that the flux through the pickup coils always passes in the same direction.
摘要翻译：拾取盒，其具有在端部具有触针的悬臂，另一端具有磁体，磁体被支撑为枢转运动，并且具有第一磁性装置，该第一磁性装置包括磁轭，第一磁性装置相对于第一磁性装置的相对端安装，磁体的北极以及包括磁轭的第二磁性装置，所述磁轭具有相对于磁体的南极的相对端的相对端，并且其中第一和第二磁性装置的部分磁耦合在一起，使得磁通量可以自由地在第一和第二磁性装置，并且其中一对线圈安装在磁性装置中的一个上，使得通过拾取线圈的磁通总是沿相同的方向通过。

6. 发明授权

US3955055A Dynamic loudspeaker 失效
标题翻译：动态扬声器
公开(公告)号：US3955055A
公开(公告)日：1976-05-04
申请号：US542378
申请日：1975-01-20
申请人： Hirotake Kawakami , Hiroshi Koizumi
发明人： Hirotake Kawakami , Hiroshi Koizumi
IPC分类号： H04R7/12 , H04R9/06
CPC分类号： H04R7/127 , H04R9/06
摘要： A dynamic loudspeaker including a dome-type diaphragm having at least one convex surface and another concave surface, contiguous with the convex surface. Specifically, the concave surface is an annular portion surrounding the convex surface.
摘要翻译：一种动态扬声器，包括具有至少一个凸面的圆顶型隔膜和与该凸面相邻的另一凹面。具体而言，凹面是围绕凸面的环状部。

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