Patents Assigned to Japan Capacitor Industrial Co., Ltd.
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Publication number: 20120194138Abstract: An electric energy storage system is designed to equally utilize electric energy storage banks during charging/discharging, and keep fluctuation of an input voltage from a charger or an output voltage to a load, within an arbitrary range, while equally utilizing the electric energy storage banks during charging/discharging. The electric energy storage system comprises an electric energy storage module, a charger, a balancing circuit, a voltage detection section, taps led out, respectively, from one of opposite terminals of the electric energy storage module and/or the other terminal of the electric energy storage module and/or one or more of series-connection points between the electric energy storage units, through respective switches, and a switch control section for switching the switches such that one of the taps is connected to one of opposite terminals of the charger. The switch control section is operable to sequentially switch the switches according to progress of the charging.Type: ApplicationFiled: March 2, 2012Publication date: August 2, 2012Applicants: JAPAN CAPACITOR INDUSTRIAL CO., LTD., JAPAN AEROSPACE EXPLORATION AGENCYInventors: Masatoshi Uno, Akio Kukita, Kazushige Ito, Tsutomu Sekido
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Patent number: 7990682Abstract: An anode element of a solid electrolytic capacitor and a method of fabricating the anode element are improved, so that the step of manufacturing the solid electrolytic capacitor is simplified, reliability is improved, and a withstand voltage of the solid electrolytic capacitor is increased. An anode element including a metal and a coating layer formed on a surface thereof, the coating layer being composed of a hydrated oxide shown as MOx.yH2O in chemical formula (1), where M represents a valve metal and x and y represent an integer or a decimal fraction from 1 to 6, a hydroxide shown as M(OH)n in chemical formula (2), where M represents a valve metal and n represents an integer or a decimal fraction from 1 to 6, or a composite thereof, a method of manufacturing the anode element, and a solid electrolytic capacitor employing the anode element are provided.Type: GrantFiled: February 6, 2007Date of Patent: August 2, 2011Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Kazumasa Fujimoto, Yukio Takeda
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Patent number: 7852614Abstract: The invention provides a solid electrolytic capacitor wherein the anode has a dielectric oxide film of a structure less susceptible to damage due to mechanical stresses and which is diminished in leakage current and less prone to short-circuiting, and a process for fabricating the capacitor. The capacitor of the invention comprises an anode of aluminum having a dielectric oxide film formed over a surface thereof from amorphous alumina, and is characterized in that a plurality of tunnel-shaped etching pits are formed in the anode.Type: GrantFiled: December 9, 2008Date of Patent: December 14, 2010Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Kazumasa Fujimoto, Hiromu Saito, Yasushi Yoshida, Yukio Takeda
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Patent number: 7529079Abstract: The invention provides a solid electrolytic capacitor wherein the anode has a dielectric oxide film of a structure less susceptible to damage due to mechanical stresses and which is diminished in leakage current and less prone to short-circuiting, and a process for fabricating the capacitor. The capacitor of the invention comprises an anode of aluminum having a dielectric oxide film formed over a surface thereof from amorphous alumina, and is characterized in that a plurality of tunnel-shaped etching pits are formed in the anode.Type: GrantFiled: February 7, 2006Date of Patent: May 5, 2009Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Kazumasa Fujimoto, Hiromu Saito, Yasushi Yoshida, Yukio Takeda
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Publication number: 20090103244Abstract: The invention provides a solid electrolytic capacitor wherein the anode has a dielectric oxide film of a structure less susceptible to damage due to mechanical stresses and which is diminished in leakage current and less prone to short-circuiting, and a process for fabricating the capacitor. The capacitor of the invention comprises an anode of aluminum having a dielectric oxide film formed over a surface thereof from amorphous alumina, and is characterized in that a plurality of tunnel-shaped etching pits are formed in the anode.Type: ApplicationFiled: December 9, 2008Publication date: April 23, 2009Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD., JAPAN CAPACITOR INDUSTRIAL CO., LTD.Inventors: Kazumasa Fujimoto, Hiromu Saito, Yasushi Yoshida, Yukio Takeda
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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
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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
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Publication number: 20070183120Abstract: An anode element of a solid electrolytic capacitor and a method of fabricating the anode element are improved, so that the step of manufacturing the solid electrolytic capacitor is simplified, reliability is improved, and a withstand voltage of the solid electrolytic capacitor is increased. An anode element including a metal and a coating layer formed on a surface thereof, the coating layer being composed of a hydrated oxide shown as MOx.yH2O in chemical formula (1), where M represents a valve metal and x and y represent an integer or a decimal fraction from 1 to 6, a hydroxide shown as M(OH)n in chemical formula (2), where M represents a valve metal and n represents an integer or a decimal fraction from 1 to 6, or a composite thereof, a method of manufacturing the anode element, and a solid electrolytic capacitor employing the anode element are provided.Type: ApplicationFiled: February 6, 2007Publication date: August 9, 2007Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD., JAPAN CAPACITOR INDUSTRIAL CO., LTD.Inventors: Kazumasa Fujimoto, Yukio Takeda
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Publication number: 20070115613Abstract: A solid electrolytic capacitor comprises 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 cathode foil is coated with a film of a titanium-containing compound metal nitride. The compound metal nitride is aluminum titanium nitride, chromium titanium nitride, zirconium titanium nitride or titanium carbonitride.Type: ApplicationFiled: November 14, 2006Publication date: May 24, 2007Applicants: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Kazumasa Fujimoto, Satoru Yoshimitsu, Yasushi Yoshida, Hiromu Saito
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Patent number: 7158367Abstract: 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 compound metal nitride. The compound metal nitride is aluminum titanium nitride, chromium titanium nitride, or zirconium titanium nitride.Type: GrantFiled: November 17, 2003Date of Patent: January 2, 2007Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial Co., Ltd.Inventors: Kazumasa Fujimoto, Satoru Yoshimitsu, Yasushi Yoshida, Hiromu Saito
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Publication number: 20060180474Abstract: The invention provides a solid electrolytic capacitor wherein the anode has a dielectric oxide film of a structure less susceptible to damage due to mechanical stresses and which is diminished in leakage current and less prone to short-circuiting, and a process for fabricating the capacitor. The capacitor of the invention comprises an anode of aluminum having a dielectric oxide film formed over a surface thereof from amorphous alumina, and is characterized in that a plurality of tunnel-shaped etching pits are formed in the anode.Type: ApplicationFiled: February 7, 2006Publication date: August 17, 2006Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD., JAPAN CAPACITOR INDUSTRIAL CO., LTD.Inventors: Kazumasa Fujimoto, Hiromu Saito, Yasushi Yoshida, Yukio Takeda
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Publication number: 20060146474Abstract: A solid electrolytic capacitor comprises 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: ApplicationFiled: February 16, 2004Publication date: July 6, 2006Applicants: Sanyo Electric Co., LTD, SAGA SANYO INDUSTRIES CO., LTD, JAPAN CAPACITOR INDUSTRIAL CO., LTDInventors: Satoru Yoshimitsu, Kazumasa Fujimoto, Hiromu Saito, Yasushi Yoshida
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Publication number: 20060018078Abstract: A solid electrolytic capacitor comprises 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 cathode foil is coated with a film of a titanium-containing compound metal nitride. The compound metal nitride is aluminum titanium nitride, chromium titanium nitride, zirconium titanium nitride or titanium carbonitride.Type: ApplicationFiled: November 17, 2003Publication date: January 26, 2006Applicants: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd., Japan Capacitor Industrial co., Ltd.Inventors: Kazumasa Fujimoto, Satoru Yoshimitsu, Yasushi Yoshida, Hiromu Saito