公开(公告)号：US06224639B1

公开(公告)日：2001-05-01

申请号：US09348757

申请日：1999-07-07

申请人： Takahiro Hamada ,  Emiko Igaki ,  Masakazu Tanahashi ,  Yasunobu Tsuji ,  Chiharu Hayashi ,  Yoshihiko Tsujikawa

发明人： Takahiro Hamada ,  Emiko Igaki ,  Masakazu Tanahashi ,  Yasunobu Tsuji ,  Chiharu Hayashi ,  Yoshihiko Tsujikawa

IPC分类号： H01G9025

CPC分类号： H01G9/025 ,  H01G9/028 ,  H01G11/48 ,  H01G11/56 ,  Y02E60/13 ,  Y10T29/417

摘要： The present invention provides a method of producing an electrolytic capacitor including a porous anode and a solid electrolyte made of a conductive polymer, which can improve coating properties of the conductive polymer on an external surface of the porous anode and productivity. By controlling a polymerization rate, it is possible to sufficiently coat the external surface of the porous anode and fill inner spaces of a lot of pores of the porous anode with the conductive polymer with less numbers of polymerization in comparison with a method of the prior art, thereby obtaining an electrolytic capacitor with small leak current and high reliability.

摘要翻译： 本发明提供一种电解电容器的制造方法，该电解电容器包括多孔阳极和由导电聚合物制成的固体电解质，其可以改善多孔阳极的外表面上的导电聚合物的涂层性能和生产率。 通过控制聚合速度，与现有技术的方法相比，可以充分地涂覆多孔阳极的外表面并且填充多孔阳极的许多孔的内部空间与具有较少聚合数的导电聚合物 从而获得漏电流小且可靠性高的电解电容器。

公开(公告)号：US6088218A

公开(公告)日：2000-07-11

申请号：US179710

申请日：1998-10-27

申请人： Takahiro Hamada ,  Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi ,  Yasunobu Tsuji

发明人： Takahiro Hamada ,  Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi ,  Yasunobu Tsuji

IPC分类号： H01G9/00 ,  H01G9/02 ,  H01G9/025

CPC分类号： H01G9/0036 ,  H01G9/025 ,  Y10T29/417

摘要： The present invention provides a method for producing an electrolytic capacitor including a porous body of a valve metal, an oxide film on a surface of the valve metal, and a conductive polymer layer on a surface of the oxide film. The step of forming the conductive polymer layer on the surface of the oxide film includes the steps of dipping the porous body in a monomer solution; lifting the porous body from the monomer solution and dipping the porous body in an oxidizing solution; and lifting the porous body from the oxidizing solution and allowing the porous body to stand. In the step of dipping the porous body in the oxidizing solution, a period for which the porous body is dipped in the oxidizing solution is equal to or shorter than a period in which 30% of the monomer contained in pores of the porous body diffuses and flows into the oxidizing solution. Alternatively, the volume of the oxidizing solution can be less than three times that of the porous body. The above method can be performed by replacing the monomer solution and the oxidizing solution with each other. Furthermore, a temperature of the porous body is maintained at a low temperature (e.g., 10.degree. C. or less) in the step of dipping the porous body in the oxidizing solution.

摘要翻译： 本发明提供一种电解电容器的制造方法，该电解电容器包括阀金属多孔体，阀金属表面的氧化膜，氧化膜表面的导电性聚合物层。 在氧化膜的表面上形成导电聚合物层的步骤包括将多孔体浸渍在单体溶液中的步骤; 将多孔体从单体溶液中提起并将多孔体浸入氧化溶液中; 并且从氧化溶液中提起多孔体并允许多孔体静置。 在将多孔体浸渍在氧化液中的步骤中，多孔体浸渍在氧化液中的时间等于或短于多孔体的孔中含有30％的单体的时间， 流入氧化溶液。 或者，氧化溶液的体积可以小于多孔体的体积。 上述方法可以通过将单体溶液和氧化溶液相互替代来进行。 此外，在将多孔体浸入氧化溶液的步骤中，多孔体的温度保持在低温（例如10℃以下）。

公开(公告)号：US6134099A

公开(公告)日：2000-10-17

申请号：US89264

申请日：1998-06-03

申请人： Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi

发明人： Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi

IPC分类号： C08G61/10 ,  C08G61/12 ,  C08G73/00 ,  H01G9/00 ,  H01G9/02 ,  H01G9/025 ,  H01G9/028 ,  H01G9/042 ,  H01G9/04

CPC分类号： H01G9/042 ,  H01G11/48 ,  H01G11/56 ,  H01G9/0036 ,  H01G9/025 ,  H01G9/028 ,  H01G9/0425 ,  Y02E60/13 ,  Y10T29/417

摘要： An electrolytic capacitor in which an conducting polymer as a cathode of the electrolytic capacitor is formed as a homogeneous and densified film on the dielectric layer even extending to the inside of pores of a valvular metal porous body and which obtains a high rate of inducing the capacitance, and have low impedance and high responsiveness at high frequencies. A chemical oxidation polymerization method is utilized to form an conducting polymer layer even extending to the inside of pores of the capacitor element. First, a polymerization reaction is performed in a solution excluding an organic acid-type dopant to form an conducting polymer layer as a densified film on a dielectric layer extending from the surface of the porous body to every inside portions of pores in the pretreatment. Then a polymerization reaction is performed in a solution containing an organic acid-type dopant to grow an conducting polymer layer containing an organic acid-type dopant over the conducting polymer layer without including an organic acid-type dopant in the primary treatment.

摘要翻译： 一种电解电容器，其中作为电解电容器的阴极的导电聚合物在电介质层上形成为均匀且致密的膜，甚至延伸到阀瓣金属多孔体的孔的内部，并且获得高的电容率 并且在高频下具有低阻抗和高响应性。 使用化学氧化聚合法形成甚至延伸到电容器元件的孔的内部的导电聚合物层。 首先，在除了有机酸型掺杂剂之外的溶液中进行聚合反应，以在预处理中从多孔体的表面延伸到孔的每个内部的电介质层上形成作为致密化膜的导电聚合物层。 然后在包含有机酸型掺杂剂的溶液中进行聚合反应，以在一次处理中在不包含有机酸型掺杂剂的情况下，在导电聚合物层上生长含有有机酸型掺杂剂的导电聚合物层。

公开(公告)号：US06361572B1

公开(公告)日：2002-03-26

申请号：US09616876

申请日：2000-07-14

申请人： Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi

发明人： Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi

IPC分类号： H01G900

CPC分类号： H01G9/042 ,  H01G9/0036 ,  H01G9/025 ,  H01G9/028 ,  H01G9/0425 ,  H01G11/48 ,  H01G11/56 ,  Y02E60/13 ,  Y10T29/417

摘要： Disclosed is a method of making an electrolytic capacitor including the steps of forming a cathode by depositing a homogeneous and densified conducting polymer on a dielectric layer of a valvular metal porous anode. The conducting polymer is formed of two layers by chemical oxidation polymerization. The first conductive polymer layer is formed in the pretreatment step using a solution excluding an organic acid-type dopant, the polymer is efficiently formed on the inner surface of the pores of the anode and the second conductive polymer layer is formed in the primary treatment step on the first conductive polymer layer, using a solution containing an organic acid-type dopant. The resultant capacitor obtains a high capacitance, a low impedance, and a high responsiveness at high frequencies.

摘要翻译： 公开了一种制造电解电容器的方法，包括以下步骤：通过在瓦楞金属多孔阳极的电介质层上沉积均质且致密化的导电聚合物来形成阴极。 导电聚合物通过化学氧化聚合由两层形成。 在预处理步骤中，使用不含有机酸型掺杂剂的溶液形成第一导电聚合物层，在阳极的孔的内表面上有效地形成聚合物，并且在第一处理步骤中形成第二导电聚合物层 在第一导电聚合物层上，使用含有机酸型掺杂剂的溶液。 所得电容器在高频下获得高电容，低阻抗和高响应性。

公开(公告)号：US06614063B2

公开(公告)日：2003-09-02

申请号：US09726400

申请日：2000-12-01

申请人： Chiharu Hayashi ,  Yasunobu Tsuji ,  Hisataka Kato ,  Kazuo Kawahito ,  Yoshiki Hashimoto ,  Emiko Igaki ,  Hiroshi Shimada ,  Mitsuo Terada

发明人： Chiharu Hayashi ,  Yasunobu Tsuji ,  Hisataka Kato ,  Kazuo Kawahito ,  Yoshiki Hashimoto ,  Emiko Igaki ,  Hiroshi Shimada ,  Mitsuo Terada

IPC分类号： H01L2976

CPC分类号： H01G9/0029 ,  H01G9/025 ,  H01G9/15 ,  H01G11/48 ,  H01G11/56 ,  H01L21/6715 ,  Y02E60/13 ,  Y10T29/417

摘要： A solid electrolytic capacitor includes an anode element made of a valve action metal, a dielectric oxide film formed on a surface of the anode element, a solid electrolytic layer formed on a surface of the dielectric oxide film, and a cathode layer formed on a surface of the solid electrolytic layer. The solid electrolytic layer has an iron concentration not greater than 100 ppm. Alternatively or in combination therewith, a weight fraction of residues in the solid electrolytic layer is smaller than 5 wt %. The polymerization residue is an oxidizing agent and a monomer that is produced when such solid electrolytic layer is formed.

摘要翻译： 固体电解电容器包括由阀作用金属制成的阳极元件，形成在阳极元件的表面上的电介质氧化物膜，形成在电介质氧化膜的表面上的固体电解质层和形成在表面上的阴极层 的固体电解质层。 固体电解质层的铁浓度不大于100ppm。 或者或与其组合，固体电解质层中的残余物的重量分数小于5重量％。 聚合残渣是形成这种固体电解质层时产生的氧化剂和单体。

公开(公告)号：US06324051B1

公开(公告)日：2001-11-27

申请号：US09697468

申请日：2000-10-26

申请人： Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi ,  Yoshiki Hashimoto

发明人： Emiko Igaki ,  Masakazu Tanahashi ,  Chiharu Hayashi ,  Yoshiki Hashimoto

IPC分类号： H01G900

CPC分类号： H01G9/012 ,  H01G9/042 ,  H01G9/08 ,  H01G9/12 ,  H01G9/15 ,  Y10T29/417

摘要： A solid electrolytic capacitor includes a capacitor element having an anode of a valve action metal, an oxide film layer formed on the surface of the anode, a solid electrolytic layer formed on the oxide film layer and a cathode electrically connected to the solid electrolytic layer, and also a packaging resin formed to cover the capacitor element. An intermediate layer to relieve stress is arranged in at least one part of the interface between the cathode and the packaging resin. The intermediate layer is deformed and/or peels to relieve stress caused by heat applied while mounting the capacitor element on a substrate.

摘要翻译： 固体电解电容器包括具有阀作用金属的阳极的电容器元件，形成在阳极表面上的氧化膜层，形成在氧化物膜层上的固体电解质层和与固体电解质层电连接的阴极， 以及形成为覆盖电容器元件的封装树脂。 在阴极和包装树脂之间的界面的至少一部分中布置有缓解应力的中间层。 中间层变形和/或剥离以减轻在将电容器元件安装在基板上时施加的热引起的应力。

公开(公告)号：US06580601B2

公开(公告)日：2003-06-17

申请号：US10284658

申请日：2002-10-30

申请人： Takahiro Hamada ,  Emiko Igaki ,  Masakazu Tanahashi

发明人： Takahiro Hamada ,  Emiko Igaki ,  Masakazu Tanahashi

IPC分类号： H01G900

CPC分类号： H01G9/15 ,  H01G9/0425 ,  H01G11/48 ,  H01G11/56 ,  H01L2224/32245 ,  H01L2924/181 ,  Y02E60/13 ,  Y10T29/417 ,  H01L2924/00012

摘要： A solid electrolyte capacitor includes an anode made of a valve metal on whose surface a dielectric oxide film layer is formed, a solid electrolyte layer formed on the dielectric oxide film, a cathode layer formed on the solid electrolyte layer, a cathode contact terminal electrically connected to the cathode layer, and an anode contact terminal electrically connected to the anode layer. The cathode layer includes a carbon layer containing carbon particles, and a conductive paste layer containing conductive metal particles and having numerous pores, formed in that order from the solid electrolyte layer side. The solid electrolyte capacitor further includes a conductive polymer layer formed through the numerous pores of the conductive paste layer and connecting the carbon particles of the carbon layer and the conductive metal particles of the conductive paste layer. Thus, the interface resistance between the carbon layer and the conductive paste layer is lowered, and a solid electrolyte capacitor with small equivalent series resistance can be provided.

摘要翻译： 一种固体电解质电容器包括：由其表面形成有电介质氧化膜层的阀金属制成的阳极，形成在电介质氧化膜上的固体电解质层，形成在固体电解质层上的阴极层，电连接的阴极接触端子 与阳极层电连接的阳极接触端子。 阴极层包括含有碳颗粒的碳层和从固体电解质层侧依次形成含有导电金属颗粒并具有许多孔的导电浆料层。 固体电解质电容器还包括通过导电膏层的多个孔形成并连接碳层​​的碳颗粒和导电糊层的导电金属颗粒的导电聚合物层。 因此，碳层和导电糊层之间的界面电阻降低，并且可以提供具有小的等效串联电阻的固体电解电容器。

公开(公告)号：US06558616B2

公开(公告)日：2003-05-06

申请号：US09776989

申请日：2001-02-05

申请人： Masahiro Ito ,  Masakazu Tanahashi ,  Toshiro Kume ,  Kouichi Morimoto ,  Junji Kojima ,  Emiko Igaki

发明人： Masahiro Ito ,  Masakazu Tanahashi ,  Toshiro Kume ,  Kouichi Morimoto ,  Junji Kojima ,  Emiko Igaki

IPC分类号： B22F704

CPC分类号： H01C1/1406 ,  H01C7/027 ,  Y10T428/12028 ,  Y10T428/12493

摘要： An electrode for a PTC thermistor of the present invention includes a base layer having electrical conductivity and a sintered layer formed on the base layer. The sintered layer is formed by sintering a conductive powder and has electrical conductivity, and has roughness on a surface thereof. Thus, the present invention can provide an electrode for a PTC thermistor that has a large adhesion to the conductive polymer and can be produced easily.

公开(公告)号：US06392869B2

公开(公告)日：2002-05-21

申请号：US09864661

申请日：2001-05-23

申请人： Seigo Shiraishi ,  Emiko Igaki ,  Masakazu Tanahashi ,  Mikinari Shimada ,  Norihisa Takahara ,  Yasuhiko Nakada ,  Keizou Nakagawa ,  Hideki Masumi ,  Eiji Yamashita

发明人： Seigo Shiraishi ,  Emiko Igaki ,  Masakazu Tanahashi ,  Mikinari Shimada ,  Norihisa Takahara ,  Yasuhiko Nakada ,  Keizou Nakagawa ,  Hideki Masumi ,  Eiji Yamashita

IPC分类号： H01G900

CPC分类号： H01G9/012 ,  H01G9/15 ,  H01G9/26

摘要： A solid electrolytic capacitor capable of realizing miniaturization and large capacitance and obtaining the connection, in particular electric connection between the anodes, with low resistance and high reliability. A solid electrolytic capacitor includes: a laminate including a plurality of capacitor units in which a dielectric layer and a solid electrolytic layer are laminated in this order on a predetermined surface of an anode made of a valve metal; a sealing body for sealing the laminate; and an anodic conductive elastic body formed outside the sealing body and electrically connected to the anode. The anodes are adhered to each other via the conductive elastic body. In the solid electrolytic capacitor, a part of the anode is exposed to the outside of the sealing portion and the exposed portion is covered with a plating layer, and electrically connected to the anodic conductive elastic body via the covered exposed portion.

公开(公告)号：US5561828A

公开(公告)日：1996-10-01

申请号：US297218

申请日：1994-08-29

申请人： Emiko Igaki ,  Masakazu Tanahashi ,  Takashi Iguchi ,  Yoichi Okinaka

发明人： Emiko Igaki ,  Masakazu Tanahashi ,  Takashi Iguchi ,  Yoichi Okinaka

IPC分类号： H01G4/30 ,  B22F3/10 ,  B22F5/00

CPC分类号： H01G4/30

摘要： A method of manufacturing a ceramic electronic part includes the steps of: firing Pd electrodes or alloy electrodes containing Pd as a primary metal along with ceramics in the atmosphere in which Pd cannot be oxidized within the range (I) of oxidizing temperature of Pd in air; and firing the Pd electrodes or alloy electrodes along with the ceramics in air within the range (II) of deoxidizing temperature of PdO in air. The method can manufacture a ceramic electronic part, such as a multilayer ceramic capacitor, including Pd electrodes or alloy electrodes which contain Pd as a primary metal without forming internal defects inside the ceramic electronic part and reducing its properties.

摘要翻译： 一种制造陶瓷电子部件的方法包括以下步骤：在Pd在空气中的氧化温度（I）的范围内不能氧化的Pd气氛中，将Pd电极或含有Pd的合金电极与陶瓷一起烧制 ; 并将Pd电极或合金电极与陶瓷一起在空气中焙烧PdO在脱气温度范围（II）的空气中。 该方法可以制造陶瓷电子部件，例如包括Pd电极或合金电极的陶瓷电子部件，其包含Pd作为主要金属，而不会在陶瓷电子部件内部形成内部缺陷并降低其性能。