公开(公告)号：US09090479B2

公开(公告)日：2015-07-28

申请号：US13062164

申请日：2009-09-07

Applicant: Masatoshi Kuroda ,  Takahisa Yamashita ,  Kazutoshi Sanada ,  Shinsuke Maruyama

Inventor： Masatoshi Kuroda ,  Takahisa Yamashita ,  Kazutoshi Sanada ,  Shinsuke Maruyama

IPC: H01Q1/38 ,  C04B35/46 ,  B32B5/16 ,  C01G23/04 ,  C01G23/00 ,  H01Q9/04

CPC classification number: C01G23/04 ,  C01G23/00 ,  C01G23/006 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01Q1/38 ,  H01Q9/0407 ,  Y10T428/2982

Abstract: Ceramic powder having a BET specific surface area within a range of from 0.1 to 2.0 m2/g as measured according to the N2 absorption method and an average particle diameter within a range of from 0.8 to 100 μm and composed of titanium oxide or a titanate; a dielectric composite material containing a synthetic resin and the ceramic powder; and a dielectric antenna with an antenna part formed of a conductor circuit provided on a dielectric substrate formed from the dielectric composite material.

Abstract translation: 根据N2吸收法测定的BET比表面积为0.1〜2.0m 2 / g，平均粒径为0.8〜100μm，由氧化钛或钛酸盐构成的陶瓷粉末; 含有合成树脂和陶瓷粉末的介电复合材料; 以及电介质天线，其具有由设置在由所述电介质复合材料形成的电介质基板上的导体电路形成的天线部分。

公开(公告)号：US20140266525A1

公开(公告)日：2014-09-18

申请号：US14205894

申请日：2014-03-12

Applicant: TODA KOGYO CORP.

Inventor： Nobuhiro KATAYAMA ,  Hirofumi KAWASAKI ,  Koichiro MORIMOTO

IPC: H01F1/06 ,  H01F7/02 ,  H01F41/00

CPC classification number: H01F1/0573 ,  B22F9/04 ,  B22F2998/10 ,  B22F2999/00 ,  C21D6/00 ,  C21D2201/00 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C2202/02 ,  H01F1/0578 ,  B22F2201/013 ,  B22F1/0085 ,  B22F2201/20 ,  B22F2201/11

Abstract: An object of the present invention is to enhance a coercive force of magnetic particles by promoting formation of a continuous R-rich grain boundary phase in a crystal grain boundary of a magnetic phase of the particles, and to thereby obtain R-T-B-based rare earth magnet particles further having a high residual magnetic flux density. The present invention relates to production of R-T-B-based rare earth magnet particles capable of exhibiting a high coercive force even when a content of Al therein is reduced, and a high residual magnetic flux density, in which formation of an R-rich grain boundary phase therein can be promoted by heat-treating Al-containing R-T-B-based rare earth magnet particles obtained by HDDR treatment in vacuum or in an Ar atmosphere at a temperature of not lower than 670° C. and not higher than 820° C. for a period of not less than 30 min and not more than 300 min.

Abstract translation: 本发明的目的是通过促进在粒子的磁性相的晶界中形成连续的富R相的晶界而提高磁性粒子的矫顽力，由此得到RTB系稀土类磁铁 颗粒进一步具有高剩余磁通密度。 本发明涉及即使当其中Al含量降低时也能表现出高矫顽力的RTB型稀土磁体颗粒的生产和高残余磁通密度，其中形成富R晶界相 可以通过在真空中或在Ar气氛中在不低于670℃且不高于820℃的温度下热处理由HDDR处理获得的含有Al的RTB基稀土磁体颗粒来促进其中的 时间不少于30分钟，不超过300分钟。

公开(公告)号：US20130265128A1

公开(公告)日：2013-10-10

申请号：US13835754

申请日：2013-03-15

Applicant: TODA KOGYO CORP.

Inventor： Nobuhiro KATAYAMA ,  Hirofumi KAWASAKI ,  Koichiro MORIMOTO

IPC: H01F7/02 ,  H01F1/01 ,  H01F41/00

CPC classification number: H01F7/02 ,  B22F1/0085 ,  B22F2999/00 ,  C22C33/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C2202/02 ,  H01F1/01 ,  H01F1/0573 ,  H01F1/0578 ,  H01F41/005 ,  B22F2201/013 ,  B22F2203/11

Abstract: R-T-B-based rare earth magnet particles are produced by an HDDR treatment which comprises a first stage HD step of heating particles of a raw material alloy having a composition of R, B and Co in an inert atmosphere or in a vacuum atmosphere and then replacing the atmosphere with a hydrogen-containing gas atmosphere in which the raw material alloy particles are held in the same temperature range and a second stage HD step of heating a material obtained in the first stage HD step in which the material is held in the hydrogen-containing gas atmosphere.

Abstract translation: 通过HDDR处理生产RTB型稀土磁体颗粒，其包括在惰性气氛或真空气氛中加热具有R，B和Co组成的原料合金的颗粒的第一阶段HD步骤，然后将 含有原料合金颗粒保持在相同温度范围的含氢气体气氛的气氛，以及第二阶段HD步骤，将在第一阶段HD步骤中获得的材料加热，其中所述材料保持在含氢气体 气体气氛。

公开(公告)号：US20110227796A1

公开(公告)日：2011-09-22

申请号：US13062164

申请日：2009-09-07

Applicant: Masatoshi Kuroda ,  Takahisa Yamashita ,  Kazutoshi Sanada ,  Shinsuke Maruyama

Inventor： Masatoshi Kuroda ,  Takahisa Yamashita ,  Kazutoshi Sanada ,  Shinsuke Maruyama

IPC: H01Q1/38 ,  C04B35/46 ,  B32B5/16

CPC classification number: C01G23/04 ,  C01G23/00 ,  C01G23/006 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01Q1/38 ,  H01Q9/0407 ,  Y10T428/2982

Abstract: Ceramic powder having a BET specific surface area within a range of from 0.1 to 2.0 m2/g as measured according to the N2 absorption method and an average particle diameter within a range of from 0.8 to 100 μm and composed of titanium oxide or a titanate; a dielectric composite material containing a synthetic resin and the ceramic powder; and a dielectric antenna with an antenna part formed of a conductor circuit provided on a dielectric substrate formed from the dielectric composite material.

Abstract translation: 根据N2吸收法测定的BET比表面积为0.1〜2.0m 2 / g，平均粒径为0.8〜100μm，由氧化钛或钛酸盐构成的陶瓷粉末; 含有合成树脂和陶瓷粉末的介电复合材料; 以及电介质天线，其具有由设置在由所述电介质复合材料形成的电介质基板上的导体电路形成的天线部分。

公开(公告)号：US20100193972A1

公开(公告)日：2010-08-05

申请号：US12303856

申请日：2006-06-06

Applicant: Kazumi Yamamoto ,  Masaharu Abe ,  Shigehisa Yamamoto ,  Kazushi Nishimoto ,  Tomohiro Dote ,  Kazumasa Igarashi ,  Kazuhiro Ikemura ,  Takuya Eto ,  Masataka Tada ,  Katsumi Okayama ,  Kaoru Kato

Inventor： Kazumi Yamamoto ,  Masaharu Abe ,  Shigehisa Yamamoto ,  Kazushi Nishimoto ,  Tomohiro Dote ,  Kazumasa Igarashi ,  Kazuhiro Ikemura ,  Takuya Eto ,  Masataka Tada ,  Katsumi Okayama ,  Kaoru Kato

IPC: H01L23/29 ,  C08K3/10 ,  C08K3/36

CPC classification number: C01G49/0018 ,  C01G49/0063 ,  C01G49/0072 ,  C01P2002/32 ,  C01P2002/50 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/22 ,  C01P2006/42 ,  C01P2006/80 ,  C04B35/2625 ,  C04B35/265 ,  C04B35/6263 ,  C04B35/62655 ,  C04B35/62675 ,  C04B35/62685 ,  C04B35/62695 ,  C04B2235/3206 ,  C04B2235/3262 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/528 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/763 ,  C04B2235/79 ,  C08G59/621 ,  C08L63/00 ,  C09C1/24 ,  H01L23/295 ,  H01L23/3107 ,  H01L23/3128 ,  H01L23/552 ,  H01L24/45 ,  H01L24/48 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48235 ,  H01L2224/48247 ,  H01L2224/48465 ,  H01L2924/01012 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01079 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/181 ,  H01L2924/3025 ,  Y10T428/2982 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

Abstract: A resin composition for semiconductor encapsulation having good moldability, of which the cured product has effective electromagnetic wave shieldability, is provided. A resin composition for semiconductor encapsulation, containing spherical sintered ferrite particles having the following properties (a) to (c) : (a) the soluble ion content of the particles is at most 5 ppm; (b) the mean particle size of the particles is from 10 to 50 μm; (c) the crystal structure of the particles by X-ray diffractiometry is a spinel structure.

Abstract translation: 提供了具有良好成型性的半导体封装用树脂组合物，其固化物具有有效的电磁波屏蔽性。 一种半导体封装用树脂组合物，含有具有以下特性（a）〜（c）的球状烧结铁氧体颗粒：（a）颗粒的可溶性离子含量为5ppm以下， （b）颗粒的平均粒度为10〜50μm; （c）通过X射线衍射法测定的颗粒的晶体结构是尖晶石结构。

公开(公告)号：US07767034B2

公开(公告)日：2010-08-03

申请号：US11629976

申请日：2005-09-29

Applicant: Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

Inventor： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

IPC: H01F1/20 ,  H01F1/24 ,  B32B5/00

CPC classification number: B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2991 ,  B22F3/02 ,  B22F3/24

Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

Abstract translation: 软磁性材料是包括具有主要由Fe构成的金属磁性粒子（10）和覆盖金属磁性粒子（10）的绝缘涂层（20）的复合磁性体（30）和绝缘涂层（20）的软磁性材料， 含有磷酸铁化合物和磷酸铝化合物。 包含在与金属磁性颗粒（10）接触的绝缘涂层（20）的接触表面中的Fe的原子比大于绝缘涂层（20）表面中所含的Fe的原子比。 绝缘涂层（20）与金属磁性颗粒（10）接触的接触表面中所含的Al的原子比小于绝缘涂层（20）表面中的Al的原子比。 因此，可以减少铁损。

公开(公告)号：US20020028353A1

公开(公告)日：2002-03-07

申请号：US09933074

申请日：2001-08-21

Applicant: TODA KOGYO CORP.

Inventor： Kazuyuki Hayashi ,  Keisuke Iwasaki ,  Hiroko Morii

IPC: G11B005/733

CPC classification number: B82Y30/00 ,  C01G49/06 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/42 ,  C01P2006/80 ,  C09C1/24 ,  G11B5/733 ,  G11B5/738 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/2982

Abstract: The present invention provides particles for a non-magnetic undercoat layer of a magnetic recording medium, which comprises acicular hematite particles having an average major axial diameter of not more than 0.3 nullm, a geometrical standard deviation in the major axial diameter of not more than 1.50 and a BET specific surface area of not less than 40 m2/g, and containing a total amount of sodium of not more than 50 ppm calculated as Na. The acicular hematite particles have an excellent dispersibility in a vehicle so that a non-magnetic undercoat layer containing the particles is excellent in surface smoothness and strength. A magnetic recording medium using the non-magnetic undercoat layer is excellent not only in electromagnetic performance, but in storage stability.

Abstract translation: 本发明提供一种用于磁记录介质的非磁性底涂层的颗粒，其包括平均主轴向直径不大于0.3μm的针状赤铁矿颗粒，主轴向直径的几何标准偏差不大于1.50 BET比表面积不小于40m2 / g，并且含有以Na计算的不超过50ppm的钠的总量。 针状赤铁矿颗粒在车辆中具有优异的分散性，使得含有该颗粒的非磁性底涂层具有优异的表面光滑度和强度。 使用非磁性底涂层的磁记录介质不仅在电磁性能方面优异，而且在储存稳定性方面是优异的。

公开(公告)号：US5118575A

公开(公告)日：1992-06-02

申请号：US566036

申请日：1990-08-13

Applicant: Masaaki Maekawa ,  Norio Sugita

Inventor： Masaaki Maekawa ,  Norio Sugita

IPC: C01G49/00 ,  C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  H01F1/11

CPC classification number: G11B5/70678 ,  Y10T428/2991

Abstract: Disclosed herein are plate-like composite Ba-containing ferrite fine particles for magnetic recording, containing Ni, Co and Ti in the molar ratios defined by 0.02.ltoreq.Ni/Fe.ltoreq.0.10, 0.01.ltoreq.Co/Fe.ltoreq.0.10 and 0.01.ltoreq.Ti/Fe.ltoreq.0.10, but 0.03.ltoreq.(Ni+Co)/Fe.ltoreq.0.14 and Ti/(Ni+Co)

公开(公告)号：US5108862A

公开(公告)日：1992-04-28

申请号：US480492

申请日：1990-02-16

Applicant: Souichiro Kishimoto ,  Tsutomu Sakaida ,  Yoshiaki Echigo ,  Keiichi Asami ,  Tetsuro Toda ,  Kazuo Fujioka ,  Eiichi Kurita ,  Toshiyuki Hakata ,  Shigeru Takaragi

Inventor： Souichiro Kishimoto ,  Tsutomu Sakaida ,  Yoshiaki Echigo ,  Keiichi Asami ,  Tetsuro Toda ,  Kazuo Fujioka ,  Eiichi Kurita ,  Toshiyuki Hakata ,  Shigeru Takaragi

IPC: G03G9/10 ,  G03G9/107 ,  G03G9/113

CPC classification number: G03G9/1075 ,  G03G9/10 ,  G03G9/1135

Abstract: Disclosed herein are composite carrier particles for electrophotography comprising 80 to 99% by weight of ferromagnetic fine particles and a phenol resin, and having a number-average particle diameter of 10 to 1,000 .mu.m, a bulk density of not more than 2.0 g /cm.sup.3, and a curved surface configuration, and a process for producing the same.

公开(公告)号：US5075169A

公开(公告)日：1991-12-24

申请号：US358019

申请日：1989-05-30

Applicant: Norimichi Nagai ,  Norio Sugita

Inventor： Norimichi Nagai ,  Norio Sugita

IPC: G11B5/706 ,  G11B5/712

CPC classification number: G11B5/70678 ,  G11B5/70657 ,  G11B5/712 ,  Y10T428/2982 ,  Y10T428/2991

Abstract: Disclosed herein are plate-like composite ferrite particles for magnetic recording comprising plate-like composite ferrite containing Ba particles having a composition represented by 19