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1. 发明授权

US06301092B1 Ceramic capacitor and method for making the same 有权
标题翻译：陶瓷电容器及其制作方法
公开(公告)号：US06301092B1
公开(公告)日：2001-10-09
申请号：US09591298
申请日：2000-06-09
申请人： Kotaro Hata , Toshihiro Okamatsu , Tomoyuki Nakamura , Kenji Hori , Harunobu Sano
发明人： Kotaro Hata , Toshihiro Okamatsu , Tomoyuki Nakamura , Kenji Hori , Harunobu Sano
IPC分类号： H01G406
CPC分类号： H01G4/1245 , H01G4/1218 , H01G4/1236
摘要： A ceramic capacitor has a dielectric ceramic layer and at least one pair of electrodes. The dielectric ceramic layer has a primary phase and secondary phases, and the size of the secondary phases in the thickness direction of the dielectric ceramic layer is not more than about one-third of the thickness of the dielectric ceramic layer. A method for making the ceramic capacitor includes the steps of mixing compounds constituting secondary phases in a primary phase of a dielectric ceramic, annealing and then pulverizing the mixture to prepare a raw material for the secondary phases, mixing the raw material for the secondary phases with other materials for the dielectric ceramic shaping and sintering the mixture to form a dielectric ceramic, and forming electrodes on the dielectric ceramic. The ceramic capacitor has high insulation resistance, superior load characteristics at high temperatures or high humidity and high weather resistance, even when sintered in a reducing atmosphere.
摘要翻译：陶瓷电容器具有介电陶瓷层和至少一对电极。电介质陶瓷层具有主相和次相，并且介电陶瓷层的厚度方向上的次相的尺寸不超过介电陶瓷层的厚度的约三分之一。制造陶瓷电容器的方法包括以下步骤：将构成第二相的化合物混合在电介质陶瓷的初生相中，退火然后粉碎混合物以制备二次相的原料，将第二相的原料与电介质陶瓷的其他材料成型并烧结混合物以形成电介质陶瓷，并在电介质陶瓷上形成电极。陶瓷电容器具有高绝缘电阻，在高温或高湿度下具有优异的负载特性和高耐候性，即使在还原气氛中烧结也是如此。

2. 发明授权

US06380116B1 Dielectric ceramic composition and monolithic ceramic capacitor 有权
标题翻译：介电陶瓷组合物和单片陶瓷电容器
公开(公告)号：US06380116B1
公开(公告)日：2002-04-30
申请号：US09626477
申请日：2000-07-26
申请人： Toshihiro Okamatsu , Tomoyuki Nakamura , Kenji Hori , Kotaro Hata , Harunobu Sano
发明人： Toshihiro Okamatsu , Tomoyuki Nakamura , Kenji Hori , Kotaro Hata , Harunobu Sano
IPC分类号： C04B35468
CPC分类号： C04B35/4682 , H01G4/1227
摘要： A dielectric ceramic composition comprises a compound oxide comprising barium titanate BamTiO3 as a major component and RO3/2, CaO, MgO, and SiO2, as accessory components, wherein R is at least one element selected from the group consisting of Y, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb, wherein the compound oxide satisfies the following relationship: 100BamTiO3+aRO3/2+bCaO+cMgO+dSiO2, wherein, on a molar basis, 0.990≦m≦1.030, 0.5≦a≦6.0, 0.10≦b≦5.00, 0.010≦c
摘要翻译：电介质陶瓷组合物包括作为主要成分的复合氧化物，其包含作为主要成分的钛酸钡BamTiO 3和作为附加成分的RO3 / 2，CaO，MgO和SiO2，其中R是选自Y，Sm，Eu中的至少一种元素，Gd，Tb，Dy，Ho，Er，Tm和Yb，其中复合氧化物满足以下关系：100BamTiO3 + aRO3 / 2 + bCaO + cMgO + dSiO2，其中，以摩尔计为0.990 <= m <= 1.030 ，0.5 <= a <= 6.0,0.10 <= b <= 5.00,0.010 <= c <1.000和0.05 <= d <2.00。电介质陶瓷组合物满足由日本工业标准（JIS）定义的B特性和由EIA标准定义的关于静电电容对温度的依赖性的X7R特性，并且具有绝缘电阻和静电电容的大CR产物。包含由该介电陶瓷组合物构成的薄电介质层的叠层陶瓷电容器是高度可靠的。

3. 发明授权

US06310761B1 Dielectric ceramic composition and monolithic ceramic capacitor 有权
标题翻译：介电陶瓷组合物和单片陶瓷电容器
公开(公告)号：US06310761B1
公开(公告)日：2001-10-30
申请号：US09655071
申请日：2000-09-05
申请人： Kenji Hori , Kotaro Hata , Toshihiro Ikamatsu , Tomoyuki Nakamura , Harunobu Sano
发明人： Kenji Hori , Kotaro Hata , Toshihiro Ikamatsu , Tomoyuki Nakamura , Harunobu Sano
IPC分类号： H01G406
CPC分类号： C04B35/4682 , C01G23/002 , C01P2004/61 , C01P2006/40 , H01G4/1227
摘要： A dielectric ceramic composition is composed of barium titanate (BamTiO3), a rare-earth oxide (RO3/2), where the rare-earth element is at least one of Y, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb, calcium oxide and a silicon oxide. When the dielectric ceramic composition is represented by the formula 100BamTiO3+aRO3/2+bCaO+cSiO2, where coefficients 100, a, b, and c indicate moles, the relationships 0.990≦m≦1.030, 0.5≦a≦30, 0.5≦b≦30, and 0.5≦c≦30 are satisfied. A monolithic ceramic capacitor includes a plurality of dielectric ceramic layers, internal electrodes formed between the dielectric ceramic layers and external electrodes electrically connected to the internal electrodes. The dielectric ceramic layers are composed of the dielectric ceramic composition described above, and the internal electrodes are composed of a base metal as a principal constituent.
摘要翻译：介电陶瓷组合物由稀土元素为Y，Sm，Eu，Gd，Tb，Dy，Ho，Er中的至少一种的钛酸钡（BamTiO 3），稀土类氧化物（RO3 / 2），Tm和Yb，氧化钙和氧化硅。当电介质陶瓷组合物由式100BamTiO3 + aRO3 / 2 + bCaO + cSiO2表示时，其中系数100，a，b和c表示摩尔数，关系0.990 <= m <= 1.030,0.5 <= a <= 30 ，0.5 <= b <= 30，满足0.5 <= c <30。单片陶瓷电容器包括多个电介质陶瓷层，形成在电介质陶瓷层和电连接到内部电极的外部电极之间的内部电极。电介质陶瓷层由上述介电陶瓷组合物构成，内部电极以贱金属为主要成分。

4. 发明授权

US06645897B2 Dielectric ceramic composition and laminated ceramic capacitor 有权
公开(公告)号：US06645897B2
公开(公告)日：2003-11-11
申请号：US09993237
申请日：2001-11-05
申请人： Tomoyuki Nakamura , Kotaro Hata , Harunobu Sano
发明人： Tomoyuki Nakamura , Kotaro Hata , Harunobu Sano
IPC分类号： C04B35468
CPC分类号： B32B18/00 , C04B35/468 , C04B2235/768 , C04B2237/066 , C04B2237/068 , C04B2237/123 , C04B2237/346 , C04B2237/348 , C04B2237/68
摘要： Provided is a dielectric ceramic composition suitably used for forming dielectric ceramic layers which constitute a laminated ceramic capacitor obtained by firing in a reducing atmosphere. Even when the dielectric ceramic composition is formed into thin dielectric ceramic layers, a highly reliable laminated ceramic capacitor having a small temperature coefficient of capacitance, a long lifetime under high temperature and high pressure conditions, and a small change in electrostatic capacitance with time under a DC voltage application can be realized. The dielectric ceramic composition contains a primary component, an additive component, and an auxiliary sintering agent, wherein the primary component and the additive component are represented by the formula 100BaTiO3+a{(1−b)R+bV}+cM, and 1.25≦a≦8.0, 0 1.1 are satisfied. R is a compound containing at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu; V is a compound containing vanadium; and M is a compound containing at least one element selected from the group consisting of Mn, Ni, Mg, Fe and Zn.

5. 发明授权

US5995360A Monolithic ceramic capacitor 失效
标题翻译：单片陶瓷电容器
公开(公告)号：US5995360A
公开(公告)日：1999-11-30
申请号：US18156
申请日：1998-02-03
申请人： Kotaro Hata , Harunobu Sano
发明人： Kotaro Hata , Harunobu Sano
IPC分类号： H01G4/12 , H01G4/30 , H01G4/06 , H01G4/20 , H01G4/228
CPC分类号： H01G4/1227
摘要： A monolithic ceramic capacitor composed of laminated plural dielectric ceramic layers, internal electrodes disposed between the dielectric ceramic layers and external electrodes formed at both the edge surfaces of the dielectric ceramic layers such that they are alternately connected to the internal electrodes, wherein the dielectric ceramic layers are composed of a material comprising principal components shown by the formula: (1-.alpha.-.beta.){BaO}.sub.m .cndot.TiO.sub.2 +.alpha.{(1-x)M.sub.2 O.sub.3 +xRe.sub.2 O.sub.3 }+.beta.(Mn.sub.1-y-z Ni.sub.y Co.sub.z)O (wherein M.sub.2 O.sub.3 is at least one of Sc.sub.2 O.sub.3 and Y.sub.2 O.sub.3 ; Re.sub.2 O.sub.3 is at least one of Gd.sub.2 O.sub.3, Tb.sub.2 O.sub.3 and DY.sub.2 O.sub.3 ; 0.0025.ltoreq..alpha..ltoreq.0.025, 0.0025.ltoreq..beta..ltoreq.0.05, .beta./.alpha..ltoreq.4, 0
摘要翻译：由叠层的多个介电陶瓷层构成的单片陶瓷电容器，设置在电介质陶瓷层之间的内部电极和形成在电介质陶瓷层的两个边缘表面的外部电极，使得它们交替地连接到内部电极，其中介电陶瓷层由包含主要成分的材料组成，所述主要组分由下式表示：（1-α-β）{BaO} m.TiO 2 +α{（1-x）M 2 O 3 + xRe 2 O 3} +β（Mn 1-y-z Ni y Co z）O 是Sc 2 O 3和Y 2 O 3中的至少一种; Re 2 O 3是Gd 2 O 3，Tb 2 O 3和D 2 O 3中的至少一种; 0.0025 和1.000

6. 发明授权

US4707411A Magnetic paint for magnetic recording media 失效
标题翻译：用于磁记录介质的磁性涂料
公开(公告)号：US4707411A
公开(公告)日：1987-11-17
申请号：US733269
申请日：1985-05-13
申请人： Akira Nakayama , Katsuya Nakamura , Kotaro Hata , Makoto Yamamoto
发明人： Akira Nakayama , Katsuya Nakamura , Kotaro Hata , Makoto Yamamoto
IPC分类号： C09D5/23 , C09D127/06 , G11B5/702
CPC分类号： G11B5/7023 , C09D127/06 , Y10S428/90 , Y10T428/31511 , Y10T428/31935
摘要： A magnetic paint for magnetic recording media, comprising a magnetic powder and as a binder therefor, a copolymer resin containing 0.5 to 10% by weight of epoxy groups and 0.1 to 4.0% by weight of sulfur- or phosphorus-containing strong acid groups and having a vinyl chloride unit content of at least 60% by weight.
摘要翻译：一种用于磁记录介质的磁性涂料，包括磁性粉末及其粘合剂，含有0.5-10重量％环氧基团和0.1-4.0重量％含硫或含磷强酸基团的共聚物树脂，并且具有至少60重量％的氯乙烯单元含量。

7. 发明授权

US4797324A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4797324A
公开(公告)日：1989-01-10
申请号：US149255
申请日：1988-01-28
申请人： Kotaro Hata
发明人： Kotaro Hata
IPC分类号： C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/702 , G11B5/708
CPC分类号： G11B5/7023 , Y10S428/90 , Y10T428/31504 , Y10T428/31511 , Y10T428/31935
摘要： The present invention discloses a magnetic recording medium comprising a substrate and a magnetic layer formed on at least one surface of the substrate, wherein said magnetic layer is constituted of a magnetic powder and a binder which contains an epoxy-containing vinyl chloride resin and a triazinethiol compound.
摘要翻译：本发明公开了一种磁记录介质，其特征在于，在基板的至少一个面上形成有基板和磁性层，其特征在于，所述磁性层由磁性粉末和含有含环氧基的氯乙烯树脂和三嗪硫醇的粘合剂构成复合。

8. 发明授权

US4600521A Electron-beam reactive magnetic coating composition for magnetic recording media 失效
标题翻译：用于磁记录介质的电子束反应性磁性涂料组合物
公开(公告)号：US4600521A
公开(公告)日：1986-07-15
申请号：US784660
申请日：1985-10-04
申请人： Eitaro Nakamura , Kotaro Hata , Makoto Yamamoto
发明人： Eitaro Nakamura , Kotaro Hata , Makoto Yamamoto
IPC分类号： G11B5/702 , C04B35/04
CPC分类号： G11B5/7026 , G11B5/7023 , Y10S428/90 , Y10T428/257
摘要： An electron-beam reactive magnetic coating composition for use in magnetic recording media comprising a magnetic powder and a polymer resin as a binder therefor, the polymer resin containing vinyl chloride as a main component and having at least one hydrophilic group selected from the group of COOM, SO.sub.3 M, SO.sub.4 M, PO.sub.3 M.sub.2 and PO.sub.4 M.sub.2 (wherein M represents hydrogen, an alkali metal or ammonium) and not more than 10,000 double bond equivalents of an unsaturated acid ester group.
摘要翻译：一种用于磁记录介质的电子束反应性磁性涂料组合物，包括磁性粉末和作为其粘合剂的聚合物树脂，所述聚合物树脂含有氯乙烯作为主要组分并具有至少一个选自COOM的亲水基团，SO3M，SO4M，PO3M2和PO4M2（其中M表示氢，碱金属或铵），不超过10,000双键不饱和酸酯基。

9. 发明授权

US4789599A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4789599A
公开(公告)日：1988-12-06
申请号：US69152
申请日：1987-07-02
申请人： Eitaro Nakamura , Kotaro Hata
发明人： Eitaro Nakamura , Kotaro Hata
IPC分类号： C09D5/23 , G11B5/702 , G11B5/71
CPC分类号： G11B5/7023 , Y10S428/90 , Y10T428/31504 , Y10T428/31511 , Y10T428/31935
摘要： A magnetic recording medium consisting of a substrate and a magnetic layer formed thereon, said magnetic layer comprising (I) an epoxy group-containing vinyl chloride resin or [I'] both a vinyl chloride resin and an epoxy group-containing resin, [II] a perfluoroalkyl group-containing carboxylic or sulfonic acid compound, and [III] a magnetic powder.
摘要翻译：由形成在其上的基板和磁性层组成的磁记录介质，所述磁性层包括（I）含环氧基的氯乙烯树脂或[I']氯乙烯树脂和含环氧基的树脂，[II ]含全氟烷基的羧酸或磺酸化合物，和[III]磁性粉末。

10. 发明授权

US4748084A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4748084A
公开(公告)日：1988-05-31
申请号：US925292
申请日：1986-10-31
申请人： Kotaro Hata , Eitaro Nakamura
发明人： Kotaro Hata , Eitaro Nakamura
IPC分类号： G11B5/702
CPC分类号： G11B5/7023 , Y10S428/90 , Y10T428/256 , Y10T428/257 , Y10T428/31511 , Y10T428/31609 , Y10T428/31786 , Y10T428/31931 , Y10T428/31935
摘要： A magnetic recording medium comprising a substrate and a magnetic layer formed thereon, said magnetic layer comprising a vinyl chloride resin, a resin containing an epoxy group, and at least one additive selected from the group consisting of (1) a phosphoric acid ester, (2) a carboxylic acid compound having a pKa of not more than 4, (3) a monosulfate compound and (4) a sulfonic acid compound.
摘要翻译：一种磁记录介质，包括基板和形成在其上的磁性层，所述磁性层包括氯乙烯树脂，含有环氧基的树脂和至少一种选自（1）磷酸酯，（ 2）pKa不大于4的羧酸化合物，（3）单硫酸酯化合物和（4）磺酸化合物。

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