公开(公告)号：US06217790B1

公开(公告)日：2001-04-17

申请号：US09480160

申请日：2000-01-10

Applicant: Masahiro Onizuka ,  Kouki Sato

Inventor： Masahiro Onizuka ,  Kouki Sato

IPC: H01R134

CPC classification number: H01F1/344 ,  C04B35/2633

Abstract: A BALUN transformer core material contains a Z-type hexagonal system ferrite having an in-plane anisotropy and a high magnetic permeability and such a high resonance frequency as to be in excess of a Snake's limiting line, and therefore, in the BALUN transformer core material, the frequency properties of the magnetic permeability are extremely good. A BALUN transformer core obtained by pressing and sintering this BALUN transformer core material has a high initial magnetic permeability and specific resistance. Moreover, a BALUN transformer obtained by applying a winding to the BALUN transformer core is provided with superior properties which are not poorer as compared with a BALUN transformer constituted of a conventional spinel ferrite, and it is a BALUN transformer having high properties which can be used in a high-frequency band of 300 MHz or more.

Abstract translation: BALUN变压器芯材料包含具有面内各向异性和高导磁率的Z型六方晶系铁氧体，并且具有超过Snake限制线的高共振频率，因此在BALUN变压器芯材料 ，磁导率的频率特性非常好。 通过压制和烧结该BALUN变压器芯材获得的BALUN变压器芯具有高的初始磁导率和电阻率。 另外，通过对BALUN变压器铁芯施加绕组获得的BALUN变压器具有与由常规的尖晶石铁氧体构成的BALUN变压器相比并不差的优异性能，并且是具有高性能的BALUN变压器，其可以使用 在300MHz以上的高频带。

公开(公告)号：US5966065A

公开(公告)日：1999-10-12

申请号：US879187

申请日：1997-06-20

Applicant: Masahiro Onizuka ,  Koh Itoh ,  Sei Kakinuma

Inventor： Masahiro Onizuka ,  Koh Itoh ,  Sei Kakinuma

IPC: C04B35/26 ,  H01F1/34 ,  H01F41/02 ,  C01G49/08 ,  H01F27/28

CPC classification number: H01F1/342 ,  C04B35/26 ,  H01F41/0246

Abstract: A core for inductance elements is formed of a sintered body of .alpha.-ferric oxide. The core has a flexural strength of at least 6 kgf/mm.sup.2 as measured by a three-point bending method, a specific resistance of at least 10.sup.6 .OMEGA..multidot.cm, a Vickers hardness of 800 to 1,500, and an iron content of 75 to 99.9 wt %, calculated as Fe.sub.2 O.sub.3. The core is produced by granulating, and forming a ferric iron powder, and holding a formed body for sintering at 950 to 1,500.degree. C. for 5 min. to 5 hours in an atmospheric environment.

Abstract translation: 用于电感元件的芯由α-氧化铁烧结体形成。 核心的弯曲强度至少为6kgf / mm2，通过三点弯曲法测量，电阻率至少为106欧米伽×厘米，维氏硬度为800至1500，铁含量为75至99.9重量％ ％，以Fe2O3计算。 芯通过造粒和形成三价铁粉末并在950至1500℃下保持烧结成型体5分钟来制备。 在大气环境中至5小时。

公开(公告)号：US6033593A

公开(公告)日：2000-03-07

申请号：US94468

申请日：1998-06-10

Applicant: Masahiro Onizuka ,  Kouki Sato

Inventor： Masahiro Onizuka ,  Kouki Sato

IPC: C04B35/26 ,  H01F1/34 ,  H01F19/06 ,  H01F27/255

CPC classification number: H01F1/344 ,  C04B35/2633

Abstract: A BALUN transformer core material contains a Z-type hexagonal system ferrite having an in-plane anisotropy and a high magnetic permeability and such a high resonance frequency as to be in excess of a Snake's limiting line, and therefore, in the BALUN transformer core material, the frequency properties of the magnetic permeability are extremely good. A BALUN transformer core obtained by pressing and sintering this BALUN transformer core material has a high initial magnetic permeability and specific resistance. Moreover, a BALUN transformer obtained by applying a winding to the BALUN transformer core is provided with superior properties which are not poorer as compared with a BALUN transformer constituted of a conventional spinel ferrite, and it is a BALUN transformer having high properties which can be used in a high-frequency band of 300 MHz or more.

Abstract translation: BALUN变压器芯材料包含具有面内各向异性和高导磁率的Z型六方晶系铁氧体，并且具有超过Snake限制线的高共振频率，因此在BALUN变压器芯材料 ，磁导率的频率特性非常好。 通过压制和烧结该BALUN变压器芯材获得的BALUN变压器芯具有高的初始磁导率和电阻率。 另外，通过对BALUN变压器铁芯施加绕组获得的BALUN变压器具有与由常规的尖晶石铁氧体构成的BALUN变压器相比并不差的优异性能，并且是具有高性能的BALUN变压器，其可以使用 在300MHz以上的高频带。

公开(公告)号：US06346673B1

公开(公告)日：2002-02-12

申请号：US09454528

申请日：1999-12-06

Applicant: Masahiro Onizuka

Inventor： Masahiro Onizuka

IPC: H01B1106

CPC classification number: H01F17/06 ,  H01F27/027 ,  H01F27/263 ,  H01F2017/065

Abstract: A split ferrite core including first and second split ferrite cores. The first split ferrite core body includes first and second leg portions, and the first leg portion is vertical with respect to the second leg portion. The second split ferrite core body includes third and forth leg portions, and the third leg portion is vertical with respect to the forth leg portion. The first leg portion of the first split ferrite core body abuts against the forth leg portion of second split ferrite core body, and the second leg portion of the first split ferrite core body abuts against the third leg portion of second split ferrite core body.

Abstract translation: 分体式铁氧体磁芯，包括第一和第二分离铁氧体磁芯。 第一分割铁氧体芯体包括第一和第二腿部，第一腿部相对于第二腿部部分是垂直的。 第二分割铁氧体芯体包括第三和第四腿部部分，并且第三腿部部分相对于第四腿部部分垂直。 第一分割铁氧体芯体的第一腿部与第二分离铁氧体磁芯体的第四腿部抵接，第一分离铁氧体磁心体的第二腿部抵靠第二分离铁氧体磁芯体的第三脚部。

公开(公告)号：US5954992A

公开(公告)日：1999-09-21

申请号：US901520

申请日：1997-07-28

Applicant: Masahiro Onizuka ,  Yutaka Saito

Inventor： Masahiro Onizuka ,  Yutaka Saito

IPC: C04B35/26 ,  H01F1/113 ,  H01F1/34

CPC classification number: H01F1/113 ,  C04B35/2633

Abstract: The invention provides a hexagonal Z type magnetic oxide sintered material having a high resistivity and high density, and an impedance device using the same. The hexagonal Z type magnetic oxide sintered material contains a main oxide component containing M wherein M is at least one of Ba and Sr, Co, and Fe and an auxiliary oxide component containing Si, having a resistivity of at least 10.sup.6 .OMEGA.-cm, a sintered density of at least 4.6 g/cm.sup.3, and an initial magnetic permeability of 5 to 25. Pb may be contained in the auxiliary oxide component. Co may be partially replaced by Me wherein Me is at least one of Ni, Zn, and Cu.

Abstract translation: 本发明提供一种具有高电阻率和高密度的六方晶Z型磁性氧化物烧结材料和使用其的阻抗装置。 六方晶Z型磁性氧化物烧结体含有含有M的主要氧化物成分，其中，M为Ba，Sr，Co，Fe中的至少一种，含有Si的辅助氧化物成分为电阻率为至少为106Ω/ 烧结密度为至少4.6g / cm 3，初始磁导率为5〜25。辅助氧化物成分中可含有Pb。 Co可以部分地被Me替代，其中Me是Ni，Zn和Cu中的至少一种。

公开(公告)号：US5750045A

公开(公告)日：1998-05-12

申请号：US499293

申请日：1995-07-06

Applicant: Yoshito Nihira ,  Takeshi Nomura ,  Masahiro Onizuka

Inventor： Yoshito Nihira ,  Takeshi Nomura ,  Masahiro Onizuka

IPC: C01G49/00 ,  C01G49/08 ,  C01G51/00 ,  C01G53/00 ,  H01F1/11 ,  H01F1/34 ,  H01F1/36

CPC classification number: C01G49/009 ,  C01G45/006 ,  C01G49/0036 ,  C01G51/006 ,  C01G53/006 ,  C01P2002/32 ,  C01P2002/54 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/42 ,  C01P2006/80

Abstract: Ferrite materials including spinel and magnetoplumbite ferrite materials are prepared by using a mixture containing at least one metal chloride and at least one metal oxide as a starting raw material and roasting the mixture in a steam-containing atmosphere to carry out pyrolysis reaction and solid phase reaction at the same time.

Abstract translation: 通过使用含有至少一种金属氯化物和至少一种金属氧化物的混合物作为起始原料并在含蒸汽的气氛中焙烧该混合物以进行热解反应和固相反应来制备包括尖晶石和磁铁矿石铁氧体材料的铁素体材料 与此同时。

公开(公告)号：US06268787B1

公开(公告)日：2001-07-31

申请号：US09453517

申请日：1999-12-03

Applicant: Masahiro Onizuka

Inventor： Masahiro Onizuka

IPC: H01F2702

CPC classification number: H01F17/06 ,  H01F27/027 ,  H01F27/263 ,  H01F2017/065

Abstract: A ferrite-core housing case 20 has a first split case half 21, and a second split case half 22 that is openable with respect to the first split case half 22, and houses a ferrite core 1 for a flat cable. A pair of spring portions 27 which press the ferrite core 1 are formed in at least one of the first and second split case halves 21 and 22, and a fulcrum of each of the spring portions 27 is located on a side face 22b of the split case half while an acting point is located on a center side.

Abstract translation: 铁氧体磁芯壳体20具有第一分体半部21和相对于第一分体半部22可开启的第二分体半部22，并容纳用于扁平电缆的铁氧体磁芯1。 在第一和第二分割半盒21和22中的至少一个中形成有一对按压铁氧体芯1的弹簧部分27，并且每个弹簧部分27的支点位于分开的侧面22b上 情况一半，而作用点位于中心一侧。

公开(公告)号：US6147928A

公开(公告)日：2000-11-14

申请号：US261228

申请日：1999-03-03

Applicant: Masahiro Onizuka ,  Yutaka Saito ,  Yoshikazu Suto

Inventor： Masahiro Onizuka ,  Yutaka Saito ,  Yoshikazu Suto

IPC: H01F17/06 ,  H01F27/02 ,  H05K7/00 ,  H05K9/00 ,  G01V1/22

CPC classification number: H01F27/027 ,  H01F17/06 ,  H01F2017/065

Abstract: An anti-noise component for a flat cable including a flat O-like ferrite core having a slit-like hole through which a flat cable is passed, and an openable and closeable case which covers the ferrite core while the slit-like hole is exposed through the case. Further, the case integrally has a coupling portion including a pawl for fixation to an apparatus on which the component is to be mounted.

Abstract translation: 一种扁平电缆的抗噪声部件，包括平坦的O型铁氧体磁心，扁平的O型铁氧体磁芯具有通过扁平电缆的狭缝状孔，以及在狭缝状的孔露出时覆盖铁氧体磁芯的可开闭的壳体 通过这种情况。 此外，壳体一体地具有包括用于固定到要安装部件的装置的棘爪的联接部。

公开(公告)号：US4623773A

公开(公告)日：1986-11-18

申请号：US590602

申请日：1984-03-19

Applicant: Masahiro Onizuka

Inventor： Masahiro Onizuka

IPC: B23H1/08 ,  B23P1/08

CPC classification number: B23H1/08

Abstract: A nonflammable electrospark machining solution which provides a high machining rate composed primarily of a saccharide such as cane sugar, fruit sugar or malt sugar with the density of saccharide being 5 to 55% by weight. A preservative may be added such as benzoic acid, salicylic acid, dehydroacetic acid or ethyl para-hydroxybenzoate with the latter being preferred in an amount of 0.01 to 0.1% by weight of the machining solution. Also, an anticorrosive such as sodium nitride, sodium polyphosphate, sodium dichromate, sodium silicate and triethanol amine is preferably added in an amount of 0.05 to 0.1% by weight of the machining solution.

Abstract translation: 一种不燃性电火花加工液，其提供主要由蔗糖，果糖或麦芽糖等糖类组成的高加工速度，其糖浓度为5〜55重量％。 可以加入防腐剂，例如苯甲酸，水杨酸，脱氢乙酸或对羟基苯甲酸乙酯，后者优选为加工溶液重量的0.01至0.1％。 此外，优选以加工溶液的0.05〜0.1重量％的量添加氮化钠，多磷酸钠，重铬酸钠，硅酸钠，三乙醇胺等防腐蚀剂。

公开(公告)号：US4536633A

公开(公告)日：1985-08-20

申请号：US558708

申请日：1983-12-07

Applicant: Masahiro Onizuka

Inventor： Masahiro Onizuka

IPC: B23H1/08 ,  B23P1/16

CPC classification number: B23H1/08

Abstract: A dielectric fluid for electrical discharge machining which contains an ester solution. The dielectric fluid presents no fire hazard during use due to a high flash point, low combustibility and the fact that it is not easily ionizable. In addition, the dielectric is not malodorous and not toxic. The invention also encompasses a method for EDM machining using this dielectric fluid.

Abstract translation: 用于放电加工的介电流体，其含有酯溶液。 由于高闪点，低燃烧性和不易电离的事实，介电流体在使用过程中不会发生火灾。 此外，电介质不是恶臭且无毒。 本发明还包括使用该介电流体进行电火花加工加工的方法。