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1. 发明专利

JP2000277335A COMMON-MODE CHOKE COIL 失效
公开(公告)号：JP2000277335A
公开(公告)日：2000-10-06
申请号：JP7840599
申请日：1999-03-23
申请人： KANKYO DENJI GIJUTSU KENKYUSHO , TOKIN CORP
发明人： TSUDA BUNSHIRO , OSADA TAKAYUKI
IPC分类号： H01F41/12 , H01F17/00 , H01F19/00 , H01F41/14
摘要： PROBLEM TO BE SOLVED: To provide a common-mode choke coil which can suppress common- mode current and has little influence on transmission signals, even in a high-frequency (several hundreds of MHz to several GHz). SOLUTION: This coil is provided with a inscribed dielectric substrate 2, forming a dielectric layer inside a hollow of a magnetic body 1 composed of a ferrite core. Two pairs of conductor lines 3, 4 having a parallel plate electrode shape, each functioning as a coil, are provided on both main surfaces of the dielectric substrate 2 which functions as a magnetic core so as to form parallel tracks. The coil is constituted, such that a characteristic impedance Zb formed by a differential mode inductance Le in a minute zone generated by the parallel tracks and the magnetic core and a minute-zone capacitance Cx constituted between the parallel tracks, is equal to a matching impedance Zo. At operation with a common-mode current Ic causing electromagnetic interfering waves, the minute-zone capacitance Cx does not affect, while a combined inductance Lc between the input and the output suppresses the common-mode current Ic.

2. 发明专利

JPH01147910A BLOCK FILTER 失效
公开(公告)号：JPH01147910A
公开(公告)日：1989-06-09
申请号：JP30695287
申请日：1987-12-03
申请人： TOKIN CORP
发明人： OSADA TAKAYUKI
IPC分类号： H03H7/09
摘要： PURPOSE:To obtain a block filter used for both the single carrier and the SS system by forming an inverted-L type low pass filter by an inductor using a TM core with high permeability and an inductor using an SN core with an excellent frequency characteristic. CONSTITUTION:The inverted-L shape low pass filter is formed by employing the inductor L1 using TM core with high permeability, the inductor L2 using an SN core having an excellent frequency characteristic and a capacitor C1. The capacitor C1 is connected to a neutral line and the inductors L1, L2. A capacitor C2 is connected between live lines at the side of the indoor output terminal. A varister VA is connected to the live line and the neutral line at the side of the outdoor output terminal side. Thus, the small sized, light weight and inexpensive block filter used for both the single carrier type or the SS system for single phase three wire system is obtained.

3. 发明专利

JP2004193316A Noise absorber 审中-公开
公开(公告)号：JP2004193316A
公开(公告)日：2004-07-08
申请号：JP2002359121
申请日：2002-12-11
申请人： Nec Tokin Corp , Necトーキン株式会社
发明人： SUGIYAMA HIROYUKI , OSADA TAKAYUKI
IPC分类号： H01F17/06 , H01F27/06 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a noise absorber which has a simple structure and to which a cable can be fixed by flexibly matching to the diameter of the cable.
SOLUTION: This noise absorber is provided with a pair of magnetic cores 10 and 11 formed by dividing a cylindrical magnetic core in the cylindrical direction and a split cases 12 and 13 which can respectively house the cores 10 and 11. In this noise absorber, notched sections 151-158 are formed nearly perpendicular to the contacting surfaces 101, 102, 111, and 112 of the cores 10 and 11 and parallel to the center axis of the cylindrical core between the openings formed around the center axis of a case formed by uniting the split cases 12 and 13 into one body at both ends of the case and the outer peripheral section of the case. In addition, cable retainers 123, 124, 133, and 134 formed between two adjacent notched sections are imparted with resilience so that the they are displaced in the radial and axial directions of the cable.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2003319484A Stereo earphone 审中-公开
标题翻译：立体声耳机
公开(公告)号：JP2003319484A
公开(公告)日：2003-11-07
申请号：JP2002125679
申请日：2002-04-26
申请人： Nec Tokin Corp , Necトーキン株式会社
发明人： SUGIYAMA HIROYUKI , OSADA TAKAYUKI , YOSHIDA EIKICHI
IPC分类号： H04R1/10
摘要： PROBLEM TO BE SOLVED: To provide a stereo earphone in which a high frequency current being induced can be attenuated and fashionability can be enhanced inexpensively.
SOLUTION: The stereo earphone comprises a pair of earphone parts 11R and 11L corresponding to the right and left channels, a plug 13 for connection with the output terminal of an electronic apparatus, a cable part 14 for connecting the earphone parts 11R and 11L with the plug 13 through a branch part 12, and separation cable parts 14R and 14L wherein the separation cable parts 14R and 14L are provided, respectively, with one or more high frequency current suppressors 15.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种立体声耳机，其中可以衰减感应的高频电流并且可以廉价地提高时尚性。解决方案：立体声耳机包括一对对应于左右声道的耳机部分11R和11L，用于与电子设备的输出端连接的插头13，用于连接耳机部分11R和 11L，插头13通过分支部分12以及分离电缆部分14R和14L，其中分离电缆部分14R和14L分别设置有一个或多个高频电流抑制器15.版权所有（C）2004 ，JPO

5. 发明专利

JP2003078275A Noise filter 审中-公开
标题翻译：噪声滤波器
公开(公告)号：JP2003078275A
公开(公告)日：2003-03-14
申请号：JP2001262966
申请日：2001-08-31
申请人： Nec Tokin Corp , エヌイーシートーキン株式会社
发明人： YOSHIDA EIKICHI , OSADA TAKAYUKI
IPC分类号： H01F17/06 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a noise filter being used by inserting a wire into the wire inserting hole of a magnetic core and having such a structure as the size can be reduced while preventing positional shift of the wire.
SOLUTION: A bend of sinusoidal curve, or the like, is provided between openings at the opposite ends of the wire inserting hole of a magnetic core. Since friction is increased between the inner wall of the wire inserting hole and the wire surface, positional shift is reduced and since the wire inserting hole is longer than a conventional linear wire inserting hole, contact length between the wire and the magnetic core is lengthened. Consequently, inductance or impedance is increased for the same size as compared with a conventional one resulting in reduction in size.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种通过将线插入到磁芯的线插入孔中并且具有如下尺寸的结构来使用的噪声滤波器，即可以防止线的位置偏移。解决方案：在磁芯的导线插入孔的相对端处的开口之间设置正弦曲线弯曲等。由于电线插入孔的内壁和电线表面之间的摩擦力增加，所以位移偏移减小，并且由于电线插入孔比传统的直线电线插入孔长，电线和磁芯之间的接触长度被延长。因此，与常规的相比，电感或阻抗增加了相同的尺寸，导致尺寸减小。

6. 发明专利

JP2001044040A LINE FILTER 失效
公开(公告)号：JP2001044040A
公开(公告)日：2001-02-16
申请号：JP21978399
申请日：1999-08-03
申请人： TOKIN CORP
发明人： YAMAUCHI MICHIYASU , SUGAWARA KAZUYA , OSADA TAKAYUKI , MATSUOKA SUSUMU
IPC分类号： H01F17/04 , H01F27/29 , H03H7/09
摘要： PROBLEM TO BE SOLVED: To provide a small-sized inexpensive line filter where normal choke coils capable of automated windings are provided, and its assembling manufacture is simple, and further, its finishing completeness is high. SOLUTION: In this equivalent circuit of a line filter, the winding start and termination of its winding are respectively connected with the terminals of the terminal bases positioned at the opposite ends of a bobbin to each other, whereon they can be wound mutually and automatically. Consequently, a normal choke coil 3 of one side has lead-wire tying portions at a set of squeezing-pin terminals 6a, 5a of the terminal bases. Similarly, a normal choke coil 4 of the other side has lead-wire tying portions at a set of squeezing-pin terminals 5b, 6b of the terminal bases. In this case, since the direction of a magnetic flux Φ1 and a position P1 of the winding start in the normal choke coil 3 having an inductance L1 are made opposite respectively to the direction of a magnetic flux Φ2 and a position P2 of the winding start in the normal choke coil 4 having an inductance L2, effective dealing with the normal-mode noise of the line filter is made possible.

7. 发明专利

JPH09213545A COMMON-MODE CHOKE COIL 失效
公开(公告)号：JPH09213545A
公开(公告)日：1997-08-15
申请号：JP3891596
申请日：1996-01-31
申请人： TOKIN CORP
发明人： OSADA TAKAYUKI , SATOU KUNINAGA
IPC分类号： H01F37/00 , H01F27/06
摘要： PROBLEM TO BE SOLVED: To obtain a common-made choke coil in which the number of components constituting a bobbin is reduced so as to easily control the components by a method wherein the bobbin is formed in such a way that two cylinders which are arranged in parallel and to which a winding operation is performed and an insulating partition plate which comprises a pedestal in the central part in the length direction of the cylinders and which comprises claws to be fitted to the pedestal at both ends are molded integrally. SOLUTION: In a bobbin 1 for a common-mode choke coil, two cylinders 2 which are arranged in parallel and an insulating partition plate 3 which comprises a pedestal 20 in the central part in the length direction of the cylinders 2 and in which claws 4 to be fitted to the pedestal are provided at both ends are formed integrally. Then, in the pedestal 20 at the common-mode choke coil, notches 6 which agree with cylindrical parts are formed in side faces 5 which face in the length direction of the cylinder 2, recess 8 to be fitted to the claws 4 are provided on two side faces 7 which are at right angles to the side faces 5, and a through hole 9 through which the lead-out wire of a winding is passed is formed in the bottom face 21. Thereby, it is possible to obtain the common-mode choke coil in which the number of components is reduced, which is assembled easily and whose mass productivity is enhanced.

8. 发明专利

JPH09186040A METHOD OF WINDING CLOSED MAGNETIC PATH MAGNETIC CORE COIL 失效
公开(公告)号：JPH09186040A
公开(公告)日：1997-07-15
申请号：JP35358295
申请日：1995-12-28
申请人： TOKIN CORP
发明人： OSADA TAKAYUKI
IPC分类号： H01F41/08
摘要： PROBLEM TO BE SOLVED: To improve work efficiency and reduce the cost by accommodating a magnetic path magnetic core in an insulating case, and then, passing a guide, which is spiral and outside or inside of which a groove or a passage hole is made, through the magnetic leg of the magnetic core, and inserting the tip of a wire rod into the groove or the hole of the guide, and pushing out the wire rod. SOLUTION: A closed magnetic pat magnetic core 5 is accommodated in a resinous insulating case 1, and then, a guide 3 which is spiral and inside of which a groove 6 is made is wound by one to two turns around the magnetic foot of the closed magnetic with magnetic core 5, and a wire 4 is passed into the groove 6 of this guide 3, and the wire 4 is pushed out. The wire 4 is made spiral in the same form as the spiral guide 3. The guide 3 having a groove 6 inside is used, but it may be provided outside. Moreover, a guide with a passage hole will do. Hereby, the work efficiency of winding to the closed magnetic path magnetic core can be improved sharply, and a low-cost closed magnetic path magnetic core can be obtained.

9. 发明专利

JPH0886829A WITHSTAND VOLTAGE MEASURING METHOD AND APPARATUS FOR ELECTRONIC COMPONENT 失效
公开(公告)号：JPH0886829A
公开(公告)日：1996-04-02
申请号：JP24709294
申请日：1994-09-14
申请人： TOKIN CORP
发明人： OSADA TAKAYUKI , SATO YOSHIO
IPC分类号： G01R31/12 , G01R31/302
摘要： PURPOSE: To provide a withstand voltage measuring method and apparatus for electronic components which facilitates the measuring of abnormality such as insulation drop, dielectric breakdown of a coil such as choke coil. CONSTITUTION: A high voltage impulse is applied to a terminal 10 of a winding 2 of a coil 1 to be measured via a terminating set 3 from a noise simulator 4 while a spectroscope system 5 measures the level of the intensity of a discharge light from the coil 1 to be measured as admitted from a condenser lens 6. A measured value obtained is amplified by a main amplifier 8 to be recorded by a recorder 7. The coil 1 to be measured and the spectroscope system 5 are set in a dark box 9.

10. 发明专利

JPH0831645A COIL 失效
公开(公告)号：JPH0831645A
公开(公告)日：1996-02-02
申请号：JP19115994
申请日：1994-07-20
申请人： TOKIN CORP
发明人： OSADA TAKAYUKI
IPC分类号： H01F27/32 , H01F17/04
摘要： PURPOSE:To provide a coil lessened in thickness by a method wherein a bobbin of certain structure which is manufactured at a low cost, easily assembled, and lessened in thickness is prepared for the formation of the coil. CONSTITUTION:A bobbin 10 of a coil is formed into a certain shape, wherein winding wires are separately wound on two winding frames 11 so as to be formed on legs 32 positioned on the sides of a magnetic core 1, an engagement fixing projection 21 of simple structure is press-fitted into a through-hole 20 or a groove so as to make the winding frames 11 fixed in one piece. By this setup, a coil equipped with the bobbin 10 earn be enhanced in handling properties and reliability after mounting and lessened in thickness.

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