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1. 发明授权

US11639314B2 Porous fired granulated body and method for manufacturing the same 有权
公开(公告)号：US11639314B2
公开(公告)日：2023-05-02
申请号：US16792585
申请日：2020-02-17
申请人： Itochu Ceratech Corporation
发明人： Akira Takahashi , Junya Shimosato , Takahiko Nakamura , Noriyuki Tamura
IPC分类号： C04B38/00 , C04B35/111 , C04B35/626 , C04B35/634 , C04B38/06 , C04B111/00
摘要： A porous fired granulated body is formed by consolidating numerous alumina particles to each other while letting mainly interconnected pores remain in network form across an entire cross section of a granulated body particle. The pores have an inner diameter controlled by a droplet diameter of a pore forming agent and have numerous precipitated alumina crystals formed on inner surfaces thereof. Manufacture is performed by spraying the pore forming agent (emulsion) onto a raw material to form a coating layer of the pore forming agent on a surface of the raw material particle and controlling the inner diameter of the pores. A porous fired granulated body of alumina having a high specific surface area and having higher strength for the same specific surface area can thus be provided by a simple manufacturing method.

2. 发明申请

US20020013994A1 Method for fabricating surface mountable chip inductor 失效
标题翻译：表面贴装片式电感器的制造方法
公开(公告)号：US20020013994A1
公开(公告)日：2002-02-07
申请号：US09915703
申请日：2001-07-26
申请人： Ceratech Corporation
发明人： Byeung-Joon Ahn
IPC分类号： H01F007/06 , B05D005/12 , C04B033/32
CPC分类号： H01F41/041 , H01F17/0033 , H01F41/005 , Y10T29/4902 , Y10T29/49071 , Y10T29/49076
摘要： In a method for fabricating a surface mountable chip inductor, a spiral coil pattern is formed on a surface of a cylindrical body fabricated by mixing ferrite or ceramic powder with thermoplastic organic binder, the cylindrical body is transformed into a square-shaped body by being inserted into a square-shaped mold and being applied pressure at a certain temperature. An electric characteristic lowering problem can be prevented by forming the coil on the cylindrical body, and transforming the cylindrical body into a square-shaped body is advantageous to surface mounting.
摘要翻译：在一种用于制造可表面安装的片式电感器的方法中，在通过将铁氧体或陶瓷粉末与热塑性有机粘合剂混合而制成的圆柱形主体的表面上形成螺旋线圈图案，通过插入圆柱形体将其转变成方形体成为正方形的模具，并在一定温度下施加压力。通过在圆柱体上形成线圈并将圆筒体变形为方形体可以防止电特性降低的问题，这对于表面安装是有利的。

3. 发明授权

US6087923A Low capacitance chip varistor and fabrication method thereof 失效
标题翻译：低电容芯片变阻器及其制造方法
公开(公告)号：US6087923A
公开(公告)日：2000-07-11
申请号：US40489
申请日：1998-03-18
申请人： Byeung Joon Ahn , Yong Joo Kim
发明人： Byeung Joon Ahn , Yong Joo Kim
IPC分类号： H01C7/12 , H01C10/00 , H01L7/10
CPC分类号： H01C7/18 , H01C7/1006 , H01C7/108 , H01C7/112
摘要： A low capacitance chip varistor and a fabrication method thereof are described, which are capable of protecting the electronic elements of an electronic instrument from an external and internal surge and being well applicable to an electronic element which requires a low capacitance, and the low capacitance chip varistor includes at least one sheet support layer formed of a member having a low dielectric constant, a varistor layer including at least more than one varistor coating layer formed on the support layer, at least more than two internal electrode folded with a predetermined portion of the varistor layer to be connected with the varistor layer, one end of each of which is extended from a lateral surface of the support layer, and a pair of integrally formed external electrodes formed on a lateral surface of a varistor stack member integrally formed of the support layer, the varistor layer and the internal electrodes to be connected with one end portion of each internal electrode.
摘要翻译：描述了一种低电容芯片变阻器及其制造方法，其能够保护电子仪器的电子元件免受外部和内部浪涌，并且能够很好地应用于需要低电容的电子元件，而低电容芯片变阻器包括由具有低介电常数的构件形成的至少一个片材支撑层，至少包括形成在支撑层上的至少一个压敏电阻涂层的至少一个压敏电阻层，至少两个内部电极，压敏电阻层与压敏电阻层连接，其一端从支撑层的侧表面延伸，以及形成在由支撑体一体形成的可变电阻堆叠构件的侧表面上的一对整体形成的外部电极层，可变电阻层和与每个内部电极的一个端部连接的内部电极。

4. 发明授权

US07835135B2 Magnetic and dielectric composite electronic device 失效
标题翻译：磁介电复合电子器件
公开(公告)号：US07835135B2
公开(公告)日：2010-11-16
申请号：US12040368
申请日：2008-02-29
申请人： Kyoung Hwan Cho , Jung Ik Song , Jeong In Choi
发明人： Kyoung Hwan Cho , Jung Ik Song , Jeong In Choi
IPC分类号： H01G4/06
CPC分类号： H03H7/0107 , H01F1/344 , H01F17/0013 , H01F2017/0066 , H01G4/40 , H03H2001/0085
摘要： There is a provided a magnetic and dielectric composite electronic device, comprising: a first region with a plurality of magnetic material sheets being layered; a second region with a plurality of dielectric material sheets being layered; and a third region as a middle layer interposed between the first region and the second region, including a Zn—Ti based material to prevent diffusion of the materials during co-firing of the first region and the second region, and the first region, the second region and the third region are integrally formed in a single body. In accordance with the present invention, the low pass filter including the function of the varistor is realized to obtain the EMI function and the ESD control effect. Furthermore, the one chip electronic device having the composite functions is manufactured by a simple process, and the interdiffusion between the different materials forming the magnetic and the dielectric parts is prevented to secure the durability and electrical characteristics of the product.
摘要翻译：提供了一种磁性和电介质复合电子器件，包括：具有层叠有多个磁性材料片的第一区域; 具有层叠有多个介电材料片的第二区域; 以及插入在所述第一区域和所述第二区域之间的中间层的第三区域，包括Zn-Ti基材料，以防止在所述第一区域和所述第二区域的共烧期间所述材料的扩散，以及所述第一区域，第二区域和第三区域一体地形成在单个主体中。根据本发明，实现了包括变阻器功能的低通滤波器，以获得EMI功能和ESD控制效果。此外，具有复合功能的单芯片电子器件通过简单的工艺制造，并且防止形成磁性材料和介电部件的不同材料之间的相互扩散以确保产品的耐久性和电气特性。

5. 发明申请

US20040108934A1 Chip type power inductor and fabrication method thereof 失效
标题翻译：芯片型功率电感及其制造方法
公开(公告)号：US20040108934A1
公开(公告)日：2004-06-10
申请号：US10723753
申请日：2003-11-25
申请人： Ceratech Corporation
发明人： Myoung-Hui Choi , Soon-Gyu Hong , Sang-Eun Jang
IPC分类号： H01F005/00
CPC分类号： H01F17/0013 , H01F41/046 , Y10T29/4902 , Y10T29/49069
摘要： A chip type power inductor comprising: a stack body where a magnetic substance which forms a magnetic core stacked with a plurality of layers and non-magnetic layers inserted to inside of the magnetic substance which forms a magnetic core are formed as one unit; coil patterns formed on either upper surfaces or lower surfaces of the plurality of layers of the magnetic substance which forms a magnetic core; and via holes formed at the plurality of layers constituting the magnetic substance which forms a magnetic core in order to electrically connect the coil patterns. A magnetic saturation is restrained by a non-magnetic layer formed in the power inductor, so that a DC bias characteristic corresponding to several hundreds of mAnull1A which could not be realized by the conventional multi-layer chip power inductor can be obtained
摘要翻译：一种芯片型功率电感器，包括：堆叠体，其形成形成堆叠有多层的磁芯的磁性体和插入到形成磁芯的磁性体的内部的非磁性层，作为一个单位; 形成在形成磁芯的磁性物质的多个层的上表面或下表面上的线圈图案; 以及形成在构成形成磁芯的磁性物质的多层的通孔，以便电连接线圈图案。通过形成在功率电感器中的非磁性层来抑制磁饱和，从而可以获得对应于传统多层芯片功率电感器无法实现的几百mA〜1A的DC偏置特性

6. 发明授权

US06918173B2 Method for fabricating surface mountable chip inductor 失效
标题翻译：表面贴装片式电感器的制造方法
公开(公告)号：US06918173B2
公开(公告)日：2005-07-19
申请号：US09915703
申请日：2001-07-26
申请人： Byeung-Joon Ahn
发明人： Byeung-Joon Ahn
IPC分类号： H01F17/00 , H01F27/255 , H01F41/00 , H01F41/04 , H01F7/06 , H01F3/08
CPC分类号： H01F41/041 , H01F17/0033 , H01F41/005 , Y10T29/4902 , Y10T29/49071 , Y10T29/49076
摘要： In a method for fabricating a surface mountable chip inductor, a spiral coil pattern is formed on a surface of a cylindrical body fabricated by mixing ferrite or ceramic powder with thermoplastic organic binder, the cylindrical body is transformed into a square-shaped body by being inserted into a square-shaped mold and pressure being applied at a certain temperature. An electric characteristic lowering problem can be prevented by forming the coil on the cylindrical body, and transforming the cylindrical body into a square-shaped body to improve surface mounting.
摘要翻译：在一种用于制造可表面安装的片式电感器的方法中，在通过将铁氧体或陶瓷粉末与热塑性有机粘合剂混合而制成的圆柱形主体的表面上形成螺旋线圈图案，通过插入圆柱形体将其转变成方形体成为正方形模具，并在一定温度下施加压力。通过在圆筒体上形成线圈，可以防止电特性降低的问题，并且将圆柱体转变为方形体以改善表面安装。

7. 发明申请

US20040061587A1 Stacked coil device and fabrication method thereof 失效
标题翻译：堆叠线圈装置及其制造方法
公开(公告)号：US20040061587A1
公开(公告)日：2004-04-01
申请号：US10676206
申请日：2003-10-01
申请人： Ceratech Corporation
发明人： Soon-Gyu Hong , Myoung-Hui Choi , Sang-Eun Jang
IPC分类号： H01F005/00
CPC分类号： H01F17/0013 , H01F27/2804 , H01F41/046 , H01F2017/0093 , Y10T29/4902
摘要： A stacked coil device comprising: an inner electrode layer formed of at least two layers and having a non-magnetic electrode layer and an inner magnetic layer as one unit, the non-magnetic electrode layer provided with an opening at a center thereof and provided with an electrode pattern on at least one surface of an upper surface and a lower surface thereof and the inner magnetic layer positioned at the center opening and a lateral surface of the non-magnetic electrode layer; a cover layer in contact with both surfaces of the inner electrode layer; and an external electrode terminal partially and electrically connected to the electrode pattern.
摘要翻译： 1.一种堆叠线圈装置，其特征在于，包括：由至少两层形成的内部电极层，具有非磁性电极层和内部磁性层作为一个单位，所述非磁性电极层在其中央设置有开口部，在其上表面和下表面的至少一个表面上的电极图案和位于中心开口处的内磁性层和非磁性电极层的侧表面; 与所述内电极层的两个表面接触的覆盖层; 以及与电极图案部分电连接的外部电极端子。

8. 发明申请

US20030076217A1 Polymeric PTC device capable of returning to its initial resistance after overcurrent protection 审中-公开
标题翻译：聚合PTC器件能够在过电流保护后恢复其初始电阻
公开(公告)号：US20030076217A1
公开(公告)日：2003-04-24
申请号：US10045973
申请日：2002-01-10
申请人： Ceratech Corporation
发明人： Kyoung-Ri Park , Byoung-Su Jin , Sang-Joon Sung , Yu-Seok Kim , Seoung-Jung Ryu
IPC分类号： H01C007/10
CPC分类号： H01C17/06586 , H01C7/027
摘要： A polymeric positive temperature coefficient (PTC) thermistor having a particular crystalline structure to allow the resistivity of the crystalline polymer to return to its approximate original level after an overcurrent is applied thereto. Subjecting a polymer to cross-linking, heating the cross-linked polymer at a temperature of a melting point of the polymer or above the melting point of the polymer, and re-crystallizing the heated polymer forms the particular crystalline structure. By doing so, the cross-linking rate of the crystalline polymer is maximized, and the size of the crystals in the crystalline polymer is minimized. Also, the polymer layer having electrodes thereon are cut into units of a desired size before setting and/or hardening thereof, to minimize to formation of irregularities such as stress fractures, microscopic cracks, and the like.
摘要翻译：具有特定晶体结构的聚合物正温度系数（PTC）热敏电阻，以允许结晶聚合物的电阻率在施加过电流之后恢复到其近似的原始水平。使聚合物交联，在聚合物的熔点或高于聚合物的熔点的温度下加热交联的聚合物，并重新结晶加热的聚合物形成特定的晶体结构。通过这样做，结晶聚合物的交联速率最大化，结晶聚合物中晶体的尺寸最小化。此外，在其固化和/或硬化之前，将具有电极的聚合物层切割成所需尺寸的单位，以最小化诸如应力断裂，微观裂纹等不规则性的形成。

9. 发明授权

US5830566A Friction material for dampers and process for producing the same 失效
标题翻译：用于阻尼器的摩擦材料及其制造方法
公开(公告)号：US5830566A
公开(公告)日：1998-11-03
申请号：US542595
申请日：1995-10-13
申请人： Kohichi Kimura , Yoshihiko Goto , Nobuhiro Torii , Hiroshi Katagiri , Hideyuki Miyazawa , Yoshiyuki Motoyoshi
发明人： Kohichi Kimura , Yoshihiko Goto , Nobuhiro Torii , Hiroshi Katagiri , Hideyuki Miyazawa , Yoshiyuki Motoyoshi
IPC分类号： C04B18/02 , C04B26/12 , C08J5/14 , F16D69/02 , B32B5/16
CPC分类号： C04B18/02 , C04B26/122 , F16D69/026 , C04B2111/00362 , Y02W30/97 , Y10T428/25 , Y10T428/29 , Y10T428/2904 , Y10T428/2907 , Y10T428/2913 , Y10T428/2973 , Y10T428/298 , Y10T428/2982 , Y10T428/30
摘要： A molded friction material for a damper is disclosed, which contains, as a part of a friction regulating material, porous fibrous particulates having an average particle size of 0.5 to 2 mm and a bulk density of 0.1 to 0.2 g/cm.sup.3 and comprising finely divided ceramic fibers or porous fibrous particulates having an average particle size of 0.1 to 5 mm and a bulk density of 0.2 to 2.0 g/cm.sup.3 and comprising finely divided ceramic fibers, a filler, and a binder. The friction material exhibits excellent performance basically required of a friction material, such as mechanical strength and damping characteristics, and hardly squeaks during damping.
摘要翻译：公开了一种用于阻尼器的模制摩擦材料，其包含作为摩擦调节材料的一部分的平均粒度为0.5至2mm，体积密度为0.1至0.2g / cm 3的多孔纤维颗粒，并且包括细分的陶瓷纤维或多孔纤维状微粒，其平均粒度为0.1〜5mm，体积密度为0.2〜2.0g / cm 3，并且包含细碎的陶瓷纤维，填料和粘合剂。摩擦材料表现出基本上需要摩擦材料的优异性能，例如机械强度和阻尼特性，并且在阻尼期间几乎不发出吱吱声。

10. 发明授权

US10456829B2 Method for modifying refractory molding particles and refractory molding particles obtained thereby and process for producing mold 有权
$Method for modifying refractory molding particles and refractory molding particles obtained thereby and process for producing mold$
公开(公告)号：US10456829B2
公开(公告)日：2019-10-29
申请号：US14635179
申请日：2015-03-02
申请人： Itochu Ceratech Corporation
发明人： Hiroshi Makino , Masami Ono
IPC分类号： B22C1/22 , B22C9/02 , C04B35/626 , C04B35/185 , B22C5/00 , C04B35/107 , C04B35/64 , C04B35/101 , C04B35/634 , C04B35/657
摘要： Providing a method of modifying refractory particles used to produce a casting mold by using a furan resin as a binder, so as to effectively improve a strength of the casting mold and to reduce a required amount of the binder. An artificial aggregate which is artificially produced and which has an apparent porosity of not more than 5% is used as the refractory particles, and the artificial aggregate is subjected to a heat treatment at a temperature of 400-1500° C. for not shorter than one hour in a heating atmosphere having an oxygen concentration of not higher than 15%.

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