Patents Assigned to FDK Energy Co., Ltd.
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Patent number: 9728752Abstract: There is provided An inside-out alkaline battery, including: a cylindrical cathode can that has a bottom, that performs a function of a cathode current collector, that has a nickel-plated layer on an inner surface of the cathode can, and that has a coating on a surface layer of the nickel-plated layer, the coating being composed of nickel-cobalt alloy, a thickness of the coating being between 0.15 ?m and 0.25 ?m (both inclusive), a ratio of cobalt in the nickel-cobalt alloy being between 40% and 60% (both inclusive); and a cathode mixture that is disposed in the cathode can, that is annular in shape, and that contains a cathode active material.Type: GrantFiled: July 27, 2011Date of Patent: August 8, 2017Assignee: FDK Energy Co., Ltd.Inventors: Shigeyuki Kuniya, Yoshiaki Ishitani
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Patent number: 8673485Abstract: A cylindrical battery gasket that will not functionally deteriorate in absorbing stress caused by the gasket extending radially upon the battery being sealed is provided with a boss part with a central hole through which a negative electrode collector is inserted, a canister contact part that is affixed in place and in contact with a cathode canister, a disk-shaped part that is provided to connect the boss part to the canister contact part, and a stress buffering part that is provided on the way to the disk-shaped pat. The stress buffering part has a first bent part and a second bent part, both of an acute angle, and is set nearer the center of the cathode canister than to the positive electrode mixture, upon the gasket being installed in the cathode canister.Type: GrantFiled: February 18, 2011Date of Patent: March 18, 2014Assignee: FDK Energy Co., Ltd.Inventors: Tatsuya Yamazaki, Shuji Murakami, Hidenori Tsuzuki
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Patent number: 8546015Abstract: This invention provides a battery can allowing for a reduced amount of gas forming therein, thus realizing lower production cost. The cathode can 11 of an alkaline battery is cylindrically shaped and closed-bottomed, comprising an opening 15, a body 17 and a bottom 18, with the body 17 being divided into an opening sealing section 31 and an electrode mixture container section 33 which are arranged in order from the opening 15, with the plate thickness t0 set for the electrode mixture container section 33, which is not less than 80% of the plate thickness t1 of the opening sealing section 31, with the plate thickness t3 of the electrode mixture container section 33 gradually reducing in the region starting at the topmost point of the electrode mixture container section 33 and ending at the set plate thickness t0.Type: GrantFiled: September 18, 2009Date of Patent: October 1, 2013Assignee: FDK Energy Co., Ltd.Inventors: Yukiyoshi Murakami, Shigeyuki Kuniya
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Publication number: 20130209864Abstract: There is provided An inside-out alkaline battery, including: a cylindrical cathode can that has a bottom, that performs a function of a cathode current collector, that has a nickel-plated layer on an inner surface of the cathode can, and that has a coating on a surface layer of the nickel-plated layer, the coating being composed of nickel-cobalt alloy, a thickness of the coating being between 0.15 ?m and 0.25 ?m (both inclusive), a ratio of cobalt in the nickel-cobalt alloy being between 40% and 60% (both inclusive); and a cathode mixture that is disposed in the cathode can, that is annular in shape, and that contains a cathode active material.Type: ApplicationFiled: July 27, 2011Publication date: August 15, 2013Applicant: FDK ENERGY CO., LTD.Inventors: Shigeyuki Kuniya, Yoshiaki Ishitani
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Patent number: 8361650Abstract: [Problems] A sealing gasket for an alkaline dry cell formed from a 6-12 nylon resin by injection molding, which is inhibited from cracking that occurs at inserting a current collector through a central boss portion of a gasket and thereby reliably reduces occurrence of liquid leakage while retaining the advantages due to the use of the 6-12 nylon resin. [Means for Solving the Problems] A polyhexamethylene dodecamide resin is used as a resin material of injection molding, and one part or the whole of the same kind of recycled material which was once used in injection molding is used as the resin material of a section including at least the boss portion.Type: GrantFiled: July 11, 2006Date of Patent: January 29, 2013Assignee: FDK Energy Co., Ltd.Inventors: Masato Nakamura, Yuji Tsuchida, Yukiyoshi Murakami
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Publication number: 20120231328Abstract: A cylindrical battery gasket that will not functionally deteriorate in absorbing stress caused by the gasket extending radially upon the battery being sealed is provided with a boss part (32) with a central hole 31 through which a negative electrode collector 22 is inserted, a canister contact part 33 that is affixed in place and in contact with a cathode canister 11, a disk-shaped part 34 that is provided to connect the boss part 32 to the canister contact part 33, and a stress buffering part 37 that is provided on the way to the disk-shaped part 34. The stress buffering part 37 has a first bent part 37a and a second bent part 37b, both of an acute angle, and is set nearer the center of the cathode canister 11 than to the positive electrode mixture 12, upon the gasket being installed in the cathode canister 11.Type: ApplicationFiled: February 18, 2011Publication date: September 13, 2012Applicant: FDK Energy Co., Ltd.Inventors: Tatsuya Yamazaki, Shuji Murakami, Hidenori Tsuzuki
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Patent number: 8137835Abstract: The plated steel plate for a cell can provides stable and good electrical contact on an outer surface of the cell can, and the evolution of gas within a battery can be suppressed by reducing damage to a plated surface of the steel plate when the cell can is formed by drawing press. In this manner, it is possible to provide a battery and an alkaline dry battery that can realize stable electrical contact with devices and reduce the evolution of gas. In a plated steel plate for a cell can both of whose surfaces are plated mainly with nickel, one surface of a steel plate that is a plated substrate is a dull finished surface, and another surface thereof is a bright finished surface.Type: GrantFiled: May 30, 2007Date of Patent: March 20, 2012Assignee: FDK Energy Co., Ltd.Inventors: Yuji Tsuchida, Shigeyuki Kuniya, Tatsuya Yamazaki
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Patent number: 8040109Abstract: Poor contact on a terminal face that is likely to especially occur with a dry battery with low electromotive force can be appropriately inspected and suppressed. Moreover, the inspection can be highly efficiently performed in a non-contacting state. Also, a cylindrical dry battery in which the poor contact on the terminal face is certainly suppressed is provided. An apparatus 50 that inspects an electric contact at an outer surface of a positive terminal 12 and a negative terminal 32 of a dry battery 10, includes: a light-emitting section 51 that makes a light incident on a part to be measured on a terminal face of the battery; a light-receiving section 52 that detects a reflection state of the light from the part to be measured, and a measurement processing section 55 that quantifies gloss level of the part to be measured based on detection with the light-receiving section 52, wherein evaluation data of the electric contact is obtained with measurement values of the gloss level.Type: GrantFiled: June 23, 2006Date of Patent: October 18, 2011Assignee: FDK Energy Co., Ltd.Inventors: Shigeyuki Kuniya, Yuji Tsuchida, Tatsuya Yamazaki
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Publication number: 20110165455Abstract: This invention provides a battery can allowing for a reduced amount of gas forming therein, thus realizing lower production cost. The cathode can 11 of an alkaline battery is cylindrically shaped and closed-bottomed, comprising an opening 15, a body 17 and a bottom 18, with the body 17 being divided into an opening sealing section 31 and an electrode mixture container section 33 which are arranged in order from the opening 15, with the plate thickness t0 set for the electrode mixture container section 33,which is not less than 80% of the plate thickness t1 of the opening sealing section 31, with the plate thickness t3 of the electrode mixture container section 33 gradually reducing in the region starting at the topmost point of the electrode mixture container section 33 and ending at the set plate thickness t0.Type: ApplicationFiled: September 18, 2009Publication date: July 7, 2011Applicant: FDK Energy Co., Ltd.Inventors: Yukiyoshi Murakami, Shigeyuki Kuniya
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Patent number: 7923146Abstract: A battery comprising electrode terminals 12a, 32a of a steel plate having a nickel bright-plating. The surface of the steel plate is dull finished and the concentration of sulfur and sulfur compound in the nickel bright-plating is at 0.02% or less by weight.Type: GrantFiled: April 26, 2007Date of Patent: April 12, 2011Assignee: FDK Energy Co., Ltd.Inventors: Tatsuya Yamazaki, Yuji Tsuchida
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Patent number: 7745038Abstract: In an alkaline dry battery using a polyamide resin sealing gasket that is placed between a battery case and an anode terminal plate without using a stiffening member and seals the battery case in an airtight manner, the sealing gasket includes a first and a second thin wall parts and is formed of polyamide resin, polyhexamethylene dodecanamide.Type: GrantFiled: March 1, 2006Date of Patent: June 29, 2010Assignee: FDK Energy Co., Ltd.Inventors: Itsue Yoshioka, Kiyohide Tsutsui, Yuji Tsuchida, Yukiyoshi Murakami, Tatsuya Yamazaki, Yuji Takahashi, Masato Nakamura, Takeo Nogami
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Publication number: 20100103423Abstract: Poor contact on a terminal face that is likely to especially occur with a dry battery with low electromotive force can be appropriately inspected and suppressed. Moreover, the inspection can be highly efficiently performed in a non-contacting state. Also, a cylindrical dry battery in which the poor contact on the terminal face is certainly suppressed is provided. An apparatus 50 that inspects an electric contact at an outer surface of a positive terminal 12 and a negative terminal 32 of a dry battery 10, includes: a light-emitting section 51 that makes a light incident on a part to be measured on a terminal face of the battery; a light-receiving section 52 that detects a reflection state of the light from the part to be measured, and a measurement processing section 55 that quantifies gloss level of the part to be measured based on detection with the light-receiving section 52, wherein evaluation data of the electric contact is obtained with measurement values of the gloss level.Type: ApplicationFiled: January 23, 2006Publication date: April 29, 2010Applicant: FDK Energy Co. LtdInventors: Shigeyuki Kuniya, Yuji Tsuchida, Tatsuya Yamazaki
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Publication number: 20090263714Abstract: [Problems] A sealing gasket for an alkaline dry cell formed from a 6-12 nylon resin by injection molding, which is inhibited from cracking that occurs at inserting a current collector through a central boss portion of a gasket and thereby reliably reduces occurrence of liquid leakage while retaining the advantages due to the use of the 6-12 nylon resin. [Means for Solving the Problems] A polyhexamethylene dodecamide resin is used as a resin material of injection molding, and one part or the whole of the same kind of recycled material which was once used in injection molding is used as the resin material of a section including at least the boss portion.Type: ApplicationFiled: July 11, 2006Publication date: October 22, 2009Applicant: FDK ENERGY CO., LTD.Inventors: Masato Nakamura, Yuji Tsuchida, Yukiyoshi Murakami
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Publication number: 20090197164Abstract: The invention provides a plated steel plate for a cell can in which stable and good electrical contact can be provided on an outer surface of the cell can, and the evolution of gas within a battery can be suppressed by reducing damage to a plated surface of the steel plate when the cell can is formed by drawing press. In this manner, it is possible to provide a battery and an alkaline dry battery that can realize stable electrical contact with devices and reduce the evolution of gas. In a plated steel plate 110 for a cell can both of whose surfaces are plated mainly with nickel, one surface of a steel plate 111 that is a plated substrate is a dull finished surface 111a, and another surface thereof is a bright finished surface 111b.Type: ApplicationFiled: May 30, 2007Publication date: August 6, 2009Applicant: FDK Energy Co., LtdInventors: Yuji Tsuchida, Shigeyuki Kuniya, Tatsuya Yamazaki
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Publication number: 20090130553Abstract: [Problems] A battery terminal, a battery, and a battery holder are provided which are less likely to cause a trouble that an insulated protrusion section having a configurational preventive function for improper connection is separated from a terminal surface without impairing the productivity and cost effectiveness. [Means for Solution] In battery terminals 21 and 51 on which an insulated protrusion section 31 having a configurational preventive function for improper connection is formed by discharging ultraviolet curing resin and curing the resin, the ultraviolet curing resin contains acrylate oligomer, acrylate monomer, and photopolymerization initiator, and further contains methacrylic acid added to the resin.Type: ApplicationFiled: July 11, 2006Publication date: May 21, 2009Applicant: FDK ENERGY CO., LTD.Inventors: Masato Nakamura, Yuji Tsuchida, Norihisa Watanabe
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Patent number: 7422113Abstract: A battery container case comprises an ensemble storage section 21 having made and arranged therein plural holder holes 231 that hold individually respectively cylindrical batteries 10 upright in such a way that they are half fitted into the holder holes; an open/close lid 22 that covers the batteries in the ensemble storage section from above; and a restraint member 31 for each holder hole that hinders a respective one of the batteries from being taken out of the holder hole. Each restraint member 31 is fixed to the ensemble storage section in such a disposable manner that it is removable irreversibly.Type: GrantFiled: July 20, 2006Date of Patent: September 9, 2008Assignee: FDK Energy Co., Ltd.Inventors: Nobuyuki Wakuda, Hiroshi Shibata
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Publication number: 20070247267Abstract: Variation in inductance and leakage inductance between the secondary windings is reduced thereby making lamp currents uniform and thus preventing the occurrence of uneven brightness. A two-output inverter transformer comprises a bobbin having a primary winding wound around the middle and secondary windings wound on both sides thereof and having a pole-like core inserted into its winding shaft. A rectangle frame-like core is placed to surround the primary and secondary windings such that the pole-like core is opposite the rectangle frame-like core with a gap sheet interposed at either end. Their sizes are set such that L2?L1>2t, where L1 is the length of the rectangle frame-like core, L2 is the length of the pole-like core, and t is the thickness of the gap sheet, and they are so combined that the pole-like core protrudes evenly from the opposite ends of the rectangle frame-like core.Type: ApplicationFiled: June 1, 2007Publication date: October 25, 2007Applicant: FDK ENERGY CO. LTD.Inventors: Akihiro Fujii, Toru Hirohashi, Nobuaki Ito, Kiyoshi Hironaka, Katsuo Yamada, Akihiro Sudo, Kenichiro Suzuki
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Publication number: 20070243461Abstract: A battery comprising electrode terminals 12a, 32a of a steel plate having a nickel bright-plating. The surface of the steel plate is dull finished and the concentration of sulfur and sulfur compound in the nickel bright-plating is at 0.02% or less by weight.Type: ApplicationFiled: April 26, 2007Publication date: October 18, 2007Applicant: FDK ENERGY CO. LTD.Inventors: Tatsuya Yamazaki, Yuji Tsuchida
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Publication number: 20070148551Abstract: In a cylindrical alkaline battery (10) which uses a mercury-free alloy with zinc as the main ingredient as an active material of its anode gel (18) and copper or an alloy with copper as the main ingredient as its anode electron collector (25), the surface of the anode electron collector (25) is electroless-plated with Sn to form an electroless plate film (251) of 0.05 to 0.095 ?m in thickness.Type: ApplicationFiled: January 16, 2007Publication date: June 28, 2007Applicant: FDK ENERGY CO. LTD.Inventors: Yukiyoshi Murakami, Kiyohide Tsutsui
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Publication number: 20070020512Abstract: A battery container case comprises an ensemble storage section 21 having made and arranged therein plural holder holes 231 that hold individually respectively cylindrical batteries 10 upright in such a way that they are half fitted into the holder holes; an open/close lid 22 that covers the batteries in the ensemble storage section from above; and a restraint member 31 for each holder hole that hinders a respective one of the batteries from being taken out of the holder hole. Each restraint member 31 is fixed to the ensemble storage section in such a disposable manner that it is removable irreversibly.Type: ApplicationFiled: July 20, 2006Publication date: January 25, 2007Applicant: FDK Energy Co., Ltd.Inventors: Nobuyuki Wakuda, Hiroshi Shibata