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公开(公告)号：JPH08204413A
公开(公告)日：1996-08-09
申请号：JP1342595
申请日：1995-01-31
Applicant: TOKIN CORP
Inventor： WATABE YOHEI , TAKEDA TSUGIO , IWATA SHINICHI , YOSHIDA EIKICHI
Abstract: PURPOSE: To provide a resonator and filter with simple constitution, high productivity and a low cost and suitable for miniaturization. CONSTITUTION: This resonator and filter is provided with a dielectric block in which at least one non-through hole 12 is formed along a center axis in a longitudinal direction, a conductive film 14 with which the outer surface of the dielectric block and the whole surface of the wall of the non-through hole 12 are coated, and two electrodes 15 for input/output formed on the outside face of the dielectric block in accordance with the neighborhood of the bottom of the non-through hole 12 in a state in which it is insulated electrically from the conductive film 14.
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公开(公告)号：JPH08186413A
公开(公告)日：1996-07-16
申请号：JP32909894
申请日：1994-12-28
Applicant: TOKIN CORP
Inventor： TAKEDA TSUGIO
Abstract: PURPOSE: To simplify a manufacture process and to considerably reduce manufacture cost. CONSTITUTION: A planar resonator 1 is provided with two dielectric plates superposed with an intermediate conductor film between, side conductor film 5 formed on one of the end faces of the dielectric plates orthogonal to the intermediate conductor film, and external conductor films 6 formed on the upper and lower surfaces of the dielectric plate parallel with the intermediate conductor film so as to be joined with the side conductor film 5. Then, an electrode 18 for input/output is formed on the upper or lower surface of the end part free from side conductor film 5, of the dielectric plate with a prescribed gap from the external conductor films 6. Besides, this dielectric filter is provided with planar resonators 1 more than two at least.
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公开(公告)号：JPH07218881A
公开(公告)日：1995-08-18
申请号：JP2475894
申请日：1994-01-26
Applicant: TOKIN CORP
Inventor： TAKEDA TSUGIO , TOGANO YUICHI , MURAMATSU RYOJI , TANABE TAKANOBU
Abstract: PURPOSE:To provide the waveguide type light modulating device and the method for the same, which enable the bias adjustment of output light intensity without impressing any bias voltage, concerning the waveguide type light modulating device for controlling guided light by using an optical waveguide formed on a substrate. CONSTITUTION:Photoelastic effects occur at phase shift optical waveguides 3 and 4 by applying controlled stress to the waveguide type light modulating device, and an optical output from an output optical waveguide 5 can be arbitrarily adjusted. As that adjusting means and as a method for controlling the stress to be loaded to the waveguide type light modulating device, a member 13 for impressing stress is provided on the side face of an LN substrate 1 and a screw is pressed to the waveguide or the pressure of a package is utilized.
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公开(公告)号：JPH06183896A
公开(公告)日：1994-07-05
申请号：JP35580092
申请日：1992-12-17
Applicant: TOKIN CORP
Inventor： TAKEDA TSUGIO
Abstract: PURPOSE:To provide a process for growing a lithium niobate single crystal free from subgrain or containing extremely little subgrain. CONSTITUTION:A lithium niobate single crystal is grown in the direction of the c-axis. The average temperature gradient between a standard point and the level of a pull-up line 5/4D above the standard is adjusted to 15-20 deg.C/cm, where D is diameter of the growing single crystal in the direction of the a-axis and the standard point is the center of the molten liquid surface of the raw material melted in a crucible.
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公开(公告)号：JP2014107430A
公开(公告)日：2014-06-09
申请号：JP2012259731
申请日：2012-11-28
Applicant: Nec Tokin Corp , Necトーキン株式会社
Inventor： YAMAYA TAKASHI , ABE YUKI , TAKEDA TSUGIO , KONDO MASAHIRO , AKAGI KEISUKE , SATO HIROFUMI
IPC: H01F37/00
Abstract: PROBLEM TO BE SOLVED: To provide a reactor which achieves high inductance while maintaining heat radiation performance.SOLUTION: A reactor comprises: a case; a coil; and a composite magnetic body 2 mainly including metal magnetic powder 202 and an insulative binding material 201. The coil is embedded in the composite magnetic body 2. A winding axis of the coil is arranged perpendicular to a bottom surface of the case. The metal magnetic powder 202 is exposed on a surface 22 of the composite magnetic body 2 which faces the case. The case and the exposed metal magnetic powder 202 contact with each other directly or through a heat conduction member.
Abstract translation: 要解决的问题：提供一种在保持散热性能的同时实现高电感的电抗器。解决方案：反应器包括：壳体; 线圈 以及主要包括金属磁性粉末202和绝缘粘接材料201的复合磁体2.线圈嵌入在复合磁体2中。线圈的卷绕轴线垂直于壳体的底面布置。 金属磁性粉末202暴露在复合磁体2的面向壳体的表面22上。 壳体和暴露的金属磁性粉末202直接或通过导热构件彼此接触。
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Patent Agency Ranking
公开(公告)号：JP2012033673A
公开(公告)日：2012-02-16
申请号：JP2010171439
申请日：2010-07-30
Applicant: Nec Tokin Corp , Necトーキン株式会社
Inventor： YAMAYA TAKASHI , TAKEDA TSUGIO
IPC: H01F41/04 , H01F27/255 , H01F37/00 , H01F41/02 , H01F41/12
Abstract: PROBLEM TO BE SOLVED: To facilitate the removal of attachments generated in a place upper than the magnetic slurry liquid surface after casting.SOLUTION: A magnetic element compact is obtained from using a cast having a flat part configured so that an inner diameter in the position farther from the bottom face of the cast than a reference surface is larger than an inner diameter in the position closer to the bottom face of the cast than the reference surface including the reference surface when the reference surface is the position closer to the bottom of the cast than the liquid surface into which a magnetic slurry is to be cast and from using a lid member to form a thin wall part by engaging with the cast. A magnetic element is obtained by damaging and separating at least a part of the thin wall part from the magnetic element compact by using a fixture.
Abstract translation: 要解决的问题：为了便于在铸造之后去除在磁性浆液液面以上的位置产生的附件。 解决方案：使用具有平坦部分的铸件获得磁性元件压块，该平坦部件被构造成使得距离铸件的底面更远的位置的内径比参考表面大于靠近位置的内径 当参考表面是比铸造的磁性浆料的液面更靠近铸件的位置时，铸造的底面比包括参考表面的参考表面以及使用盖构件形成 通过与铸件接合而形成薄壁部分。 通过使用夹具将磁性元件压块的薄壁部分的至少一部分损坏并分离来获得磁性元件。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JPH1051207A
公开(公告)日：1998-02-20
申请号：JP20488496
申请日：1996-08-02
Applicant: TOKIN CORP
Inventor： NOBA TAKAYA , TAKEDA TSUGIO , YOSHIDA EIKICHI
Abstract: PROBLEM TO BE SOLVED: To provide a miniaturized dielectric filter, without deteriorating the characteristics of a dielectric resonator. SOLUTION: Two through-holes 11 are formed to a dielectric block 10, an entire side face 12 of the dielectric block, an inner face of the two through-holes 11 and one face of an outer circumferential face of the through-holes 11 are covered with an electrode 15. Two separate input output terminals 16 are formed to the electrode 15 which is the outer circumferential face of the dielectric block 10. The two through-holes 11 are regarded as inner conductors of two λ/4 coaxial resonators. Furthermore, the open hole face covered with the electrode 15 is regarded as a short-circuit end 13 of the resonator and an open hole face not covered with the electrode is regarded as an open end 14. The short-circuit end 13 and the open end 14 are of 2-stage configuration and the cross section of the through-holes 11 perpendicular to the axial direction are projected. The projected part is fitted to the opening of a printed circuit board for mounting the dielectric filter onto the printed circuit board.
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公开(公告)号：JPH1013106A
公开(公告)日：1998-01-16
申请号：JP17995796
申请日：1996-06-19
Applicant: TOKIN CORP
Inventor： TAKEDA TSUGIO , WATABE YOHEI , IWATA SHINICHI , YOSHIDA EIKICHI
Abstract: PROBLEM TO BE SOLVED: To provide the dielectric filter with an improved yield at a reduced cost by allowing a passband width of the filter to be adjusted, even after a conductive film has been formed. SOLUTION: A columnal dielectric block 5, having two parallel non- throughholes 1 along a center axis in the lengthwise direction, is entirely covered by a conductive film, part of the conductive film from opposite side faces 10 to an upper or a lower face is removed continuously, and a couple of input output electrodes 4 are formed to the part, and the passband width of the dielectric filter is varied by varying a width (w) of a conductor pattern 7 of a board 11, in electrical contact with the input/output electrodes 4.
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公开(公告)号：JPH0983213A
公开(公告)日：1997-03-28
申请号：JP23379395
申请日：1995-09-12
Applicant: TOKIN CORP
Inventor： TAKEDA TSUGIO , WATABE YOHEI , IWATA SHINICHI , YOSHIDA EIKICHI
Abstract: PROBLEM TO BE SOLVED: To provide a surface mount dielectric filter in which coupling between an input-output electrode and a resonator not adjacent to the input-output electrode is not in existence in order to improve the degree of freedom of design. SOLUTION: This filter has a dielectric block 1 with a short-circuit end face 14 and 1st, 2nd and 3rd side faces 11, 12, 13 in which two non-throughholes 2 are formed. One input-output electrode 4 is formed from the 1st side face 11 to the 2nd side face 12 and the other input output electrode 4 is formed from the 1st side face 11 to a position between the non-throughholes 2, and a slit 6 whose surrounding is covered by a conductor is formed from the 1st side face 11 to the position between the non-throughholes 2 while being extended from the short-circuit end face 14 toward its opposite end face 15.
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公开(公告)号：JPH0983212A
公开(公告)日：1997-03-28
申请号：JP23378895
申请日：1995-09-12
Applicant: TOKIN CORP
Inventor： TAKEDA TSUGIO , WATABE YOHEI , IWATA SHINICHI , YOSHIDA EIKICHI
Abstract: PROBLEM TO BE SOLVED: To provide a small sized dielectric filter with excellent attenuation characteristic for a 2nd higher harmonic. SOLUTION: A dielectric block 10 is made up of a part A with a 1st length and having non-throughholes 11, 12 and a remaining part B with a 2nd length depending on the length in a direction of both end faces of the dielectric block 10 opposite to each other. In this case, the dielectric constant of the part B is selected to be more or less than the dielectric constant of the part A. Then the resonators consisting of the two non-throughholes 11, 12 exhibits the behavior of the mutual inductive coupling.
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