Patents by Inventor Satoru Yoshimitsu
Satoru Yoshimitsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9208953Abstract: To provide a solid electrolytic capacitor capable of high performance, the capacitor including: an anode element having a dielectric film disposed on a surface thereof; a cathode element; and a solid electrolyte interposed between the anode element and the cathode element, the solid electrolyte being a conductive polymer having a first repeat unit (A) expressed by the following formula (1) and a second repeat unit (B) expressed by the following formula (2): where L is an arbitrarily replaceable alkylene or silyl group having 2 or 3 carbon atoms; and Rx and Ry are each arbitrarily replaceable alkyl groups having a linear or branched structure and having 1 to 14 carbon atoms, each being different from the other.Type: GrantFiled: March 8, 2012Date of Patent: December 8, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Satoru Yoshimitsu
-
Publication number: 20140009870Abstract: To provide a solid electrolytic capacitor capable of high performance, the capacitor including: an anode element having a dielectric film disposed on a surface thereof; a cathode element; and a solid electrolyte interposed between the anode element and the cathode element, the solid electrolyte being a conductive polymer having a first repeat unit (A) expressed by the following formula (1) and a second repeat unit (B) expressed by the following formula (2): where L is an arbitrarily replaceable alkylene or silyl group having 2 or 3 carbon atoms; and Rx and Ry are each arbitrarily replaceable alkyl groups having a linear or branched structure and having 1 to 14 carbon atoms, each being different from the other.Type: ApplicationFiled: March 8, 2012Publication date: January 9, 2014Applicants: SAGA SANYO INDUSTRIES CO., LTD., SANYO ELECTRIC CO., LTD.Inventor: Satoru Yoshimitsu
-
Patent number: 8480762Abstract: A solid electrolytic capacitor excellent in adhesion to a solid electrolyte with excellent ESR and heat resistance can be provided without reducing the material characteristics of a separator. This solid electrolytic capacitor comprises a capacitor element formed by winding an anodic foil prepared from a chemical conversion foil obtained by anodizing a metal having a valve action and a counter cathodic foil through a separator and a solid electrolyte employed as an electrolyte, while the separator is prepared from aramid fiber, and a silane coupling agent adheres to voids of the aramid fiber.Type: GrantFiled: January 31, 2011Date of Patent: July 9, 2013Assignees: SANYO Electric Co., Ltd., SAGA SANYO Industries Co., Ltd.Inventor: Satoru Yoshimitsu
-
Patent number: 8363385Abstract: A solid electrolytic capacitor having a high heat resistance is provided. The solid electrolytic capacitor according to the present invention includes an anode body having a surface on which a dielectric film is formed, and a conductive polymer layer formed on the dielectric film. The conductive polymer layer includes an aromatic sulfonic acid ion and an NHPA compound ion.Type: GrantFiled: November 17, 2010Date of Patent: January 29, 2013Assignees: SANYO Electric Co., Ltd., SAGA SANYO INDUSTRIES Co, Ltd.Inventor: Satoru Yoshimitsu
-
Patent number: 8197886Abstract: The present invention provides a method of manufacturing a solid electrolytic capacitor including a step of forming a conductive polymer layer by chemical oxidization polymerization of a monomer using a solution containing a metal salt of carbon-fused bicyclic sulfonic acid as an oxidizing agent. The molar ratio X of a carbon-fused bicyclic sulfonate ion to a metal ion in the solution is less than the stoichiometric ratio Y of the metal salt of carbon-fused bicyclic sulfonic acid. This is allowed to provide a solid electrolytic capacitor with a sufficiently low equivalent series resistance (ESR) and high heat resistance.Type: GrantFiled: March 14, 2008Date of Patent: June 12, 2012Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.Inventor: Satoru Yoshimitsu
-
Patent number: 8083920Abstract: A method for manufacturing a solid electrolytic capacitor having a capacitor element produced by the steps of: forming a dielectric coating layer on the surface of an anode body, forming a conductive polymer cathode layer on the dielectric coating layer, and forming a cathode lead-out layer on the conductive polymer cathode layer, wherein the step of forming the conductive polymer cathode layer includes an electrolytic polymerization step of forming the conductive polymer cathode layer on the surface of the anode body on which the dielectric coating layer is formed by electrolytic polymerization using an electrolytic polymerization solution containing at least a monomer to be polymerized into the conductive polymer and an ionic liquid.Type: GrantFiled: March 26, 2009Date of Patent: December 27, 2011Assignees: Sanyo Electric Co., Ltd, Saga Sanyo Industries Co., LtdInventor: Satoru Yoshimitsu
-
Publication number: 20110122545Abstract: A solid electrolytic capacitor having a high heat resistance is provided. The solid electrolytic capacitor according to the present invention includes an anode body having a surface on which a dielectric film is formed, and a conductive polymer layer formed on the dielectric film. The conductive polymer layer includes an aromatic sulfonic acid ion and an NHPA compound ion.Type: ApplicationFiled: November 17, 2010Publication date: May 26, 2011Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru Yoshimitsu
-
Publication number: 20110119880Abstract: A solid electrolytic capacitor excellent in adhesion to a solid electrolyte with excellent ESR and heat resistance can be provided without reducing the material characteristics of a separator. This solid electrolytic capacitor comprises a capacitor element formed by winding an anodic foil prepared from a chemical conversion foil obtained by anodizing a metal having a valve action and a counter cathodic foil through a separator and a solid electrolyte employed as an electrolyte, while the separator is prepared from aramid fiber, and a silane coupling agent adheres to voids of the aramid fiber.Type: ApplicationFiled: January 31, 2011Publication date: May 26, 2011Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru Yoshimitsu
-
Patent number: 7903392Abstract: A solid electrolytic capacitor excellent in adhesion to a solid electrolyte with excellent ESR and heat resistance can be provided without reducing the material characteristics of a separator. This solid electrolytic capacitor comprises a capacitor element formed by winding an anodic foil prepared from a chemical conversion foil obtained by anodizing a metal having a valve action and a counter cathodic foil through a separator and a solid electrolyte employed as an electrolyte, while the separator is prepared from aramid fiber, and a silane coupling agent adheres to voids of the aramid fiber.Type: GrantFiled: February 27, 2008Date of Patent: March 8, 2011Assignees: SANYO Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.Inventor: Satoru Yoshimitsu
-
Patent number: 7885054Abstract: A solid electrolytic capacitor is configured to include a wound capacitor element that has an anode (2), a cathode (3) composed of aluminum, a hard coating film (28) formed on a surface of the cathode (3), a separator (4b), and a solid electrolyte layer, and is also configured so that the solid electrolytic capacitor further includes an intermediate layer 18 formed between the cathode (3) and the hard coating film (28), the hard coating film (28) is composed of a compound of aluminum, titanium, and at least one nonmetallic element, and the intermediate layer (18) contains at least one element selected from the group of metallic elements consisting of aluminum and titanium. It is particularly preferable that the hardness of the substance that constitutes the intermediate layer (18) of the solid electrolytic capacitor be less than the hardness of the substance that constitutes the hard coating film (28).Type: GrantFiled: November 29, 2006Date of Patent: February 8, 2011Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.Inventor: Satoru Yoshimitsu
-
Patent number: 7842104Abstract: Provided is a method of manufacturing a solid electrolytic capacitor having a solid electrolyte. The solid electrolyte having a conductive polymer is formed by an oxidative polymerization reaction, using a polymerization liquid containing a monomer and a dopant. The dopant contains alkylammonium ions as a cationic component.Type: GrantFiled: November 20, 2009Date of Patent: November 30, 2010Assignees: SANYO Electric Co., Ltd., SAGA SANYO INDUSTRIES Co., Ltd.Inventor: Satoru Yoshimitsu
-
Publication number: 20100172068Abstract: Provided are a solid electrolytic capacitor including an anode having a dielectric coating film on a surface thereof and a solid electrolyte layer including a conductive polymer, the solid electrolyte layer containing a cyclic siloxane and a chelating agent, and a method of manufacturing the same.Type: ApplicationFiled: December 31, 2009Publication date: July 8, 2010Applicants: SANYO Electric Co., Ltd., SAGA SANYO INDUSTRIES Co,. Ltd.Inventor: Satoru Yoshimitsu
-
Publication number: 20100127205Abstract: Provided is a method of manufacturing a solid electrolytic capacitor having a solid electrolyte. The solid electrolyte having a conductive polymer is formed by an oxidative polymerization reaction, using a polymerization liquid containing a monomer and a dopant. The dopant contains alkylammonium ions as a cationic component.Type: ApplicationFiled: November 20, 2009Publication date: May 27, 2010Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru Yoshimitsu
-
Publication number: 20090320254Abstract: A solid electrolytic capacitor having excellent heat resistance is provided without using a transition metal salt as a dopant and oxidant. In a method of manufacturing a solid electrolytic capacitor including a solid electrolyte made of a conductive polymer, the conductive polymer is formed by performing an oxidative polymerization reaction by brining a monomer and a dopant into contact with each other. The dopant contains an imidazolium salt of sulfonic acid.Type: ApplicationFiled: June 24, 2009Publication date: December 31, 2009Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru Yoshimitsu
-
Publication number: 20090290291Abstract: [Problem] In a wound-type solid electrolytic capacitor, leakage current that is caused by separation of a hard coating film from the cathode is prevented from increasing. [Resolution Means] A solid electrolytic capacitor is configured to include a wound capacitor element that has an anode (2), a cathode (3) composed of aluminum, a hard coating film (28) formed on a surface of the cathode (3), a separator (4b), and a solid electrolyte layer, and is also configured so that the solid electrolytic capacitor further includes an intermediate layer 18 formed between the cathode (3) and the hard coating film (28), the hard coating film (28) is composed of a compound of aluminum, titanium, and at least one nonmetallic element, and the intermediate layer (18) contains at least one element selected from the group of metallic elements consisting of aluminum and titanium.Type: ApplicationFiled: November 29, 2006Publication date: November 26, 2009Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru Yoshimitsu
-
Publication number: 20090242415Abstract: A method for manufacturing a solid electrolytic capacitor having a capacitor element produced by the steps of: forming a dielectric coating layer on the surface of an anode body, forming a conductive polymer cathode layer on the dielectric coating layer, and forming a cathode lead-out layer on the conductive polymer cathode layer, wherein the step of forming the conductive polymer cathode layer includes an electrolytic polymerization step of forming the conductive polymer cathode layer on the surface of the anode body on which the dielectric coating layer is formed by electrolytic polymerization using an electrolytic polymerization solution containing at least a monomer to be polymerized into the conductive polymer and an ionic liquid.Type: ApplicationFiled: March 26, 2009Publication date: October 1, 2009Applicants: SANYO ELECTRIC CO., LTD, SAGA SANYO Industries CO., LtdInventor: Satoru Yoshimitsu
-
Patent number: 7428139Abstract: A solid electrolytic capacitor (1) comprises a capacitor element (2) which includes an anode foil (4) and a cathode foil (5) rolled with a separator (6) interposed therebetween, and a solid electrolyte layer or an electrically conductive polymer layer provided therein. The cathode foil (5) is coated with a film of a titanium-containing composite metals nitride. The composite metals nitride is aluminum titanium nitride, chromium titanium nitride, or zirconium titanium nitride.Type: GrantFiled: November 14, 2006Date of Patent: September 23, 2008Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Kazumasa Fujimoto, Satoru Yoshimitsu, Yasushi Yoshida, Hiromu Saito
-
Publication number: 20080224090Abstract: The present invention provides a method of manufacturing a solid electrolytic capacitor including a step of forming a conductive polymer layer by chemical oxidization polymerization of a monomer using a solution containing a metal salt of carbon-fused bicyclic sulfonic acid as an oxidizing agent. The molar ratio X of a carbon-fused bicyclic sulfonate ion to a metal ion in the solution is less than the stoichiometric ratio Y of the metal salt of carbon-fused bicyclic sulfonic acid. This is allowed to provide a solid electrolytic capacitor with a sufficiently low equivalent series resistance (ESR) and high heat resistance.Type: ApplicationFiled: March 14, 2008Publication date: September 18, 2008Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru YOSHIMITSU
-
Publication number: 20080204974Abstract: A solid electrolytic capacitor excellent in adhesion to a solid electrolyte with excellent ESR and heat resistance can be provided without reducing the material characteristics of a separator. This solid electrolytic capacitor comprises a capacitor element formed by winding an anodic foil prepared from a chemical conversion foil obtained by anodizing a metal having a valve action and a counter cathodic foil through a separator and a solid electrolyte employed as an electrolyte, while the separator is prepared from aramid fiber, and a silane coupling agent adheres to voids of the aramid fiber.Type: ApplicationFiled: February 27, 2008Publication date: August 28, 2008Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.Inventor: Satoru YOSHIMITSU
-
Patent number: 7391604Abstract: A solid electrolytic capacitor having a capacitor element which includes an anode foil and a cathode foil rolled with a separator interposed therebetween, and a solid electrolyte layer or an electrically conductive polymer layer provided therein. The anode foil is coated with a dielectric oxide film. The dielectric oxide film is an oxide film formed by oxidizing a film of a mono-metal nitride or a composite metal nitride formed on the anode foil. The mono-metal nitride is titanium nitride, zirconium nitride, tantalum nitride or niobium nitride. The composite metal nitride is aluminum titanium nitride, chromium titanium nitride, zirconium titanium nitride or titanium carbonitride.Type: GrantFiled: February 16, 2004Date of Patent: June 24, 2008Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Satoru Yoshimitsu, Kazumasa Fujimoto, Hiromu Saito, Yasushi Yoshida