Patents by Inventor Koichi Mukai
Koichi Mukai 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).
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Publication number: 20220262586Abstract: A protection element (10) of the present invention has a substrate (11), a first fuse element (12) and a second fuse element (13) connected in series on the substrate (11), a heater (14) connected between the first fuse element (12) and the second fuse element (13), a third upper electrode part (17) connected between the first fuse element (12) and the second fuse element (13) and connected to the heater (14) in series, a first conduction part (18) connected to the third upper electrode part (17) and having a lower resistance value than the heater (14), and a third lower electrode part (19) connected to the first conduction part (18) and configured to be connectable to an external protection circuit.Type: ApplicationFiled: July 20, 2020Publication date: August 18, 2022Inventor: Koichi Mukai
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Publication number: 20220069367Abstract: Provided are a protecting device and a battery pack capable of preventing floating of a blowout member, preventing deformation of a meltable conductor, and maintaining predetermined current capacity and blowout properties. The protecting device 1 includes: a meltable conductor 2; and a blowout member 4 connected to one surface of the meltable conductor 2, wherein the blowout member 4 includes: an insulating substrate 3; and a deformation suppressing electrode 5 formed on a front surface 3a connected to the meltable conductor 2 of the insulating substrate 3 and connected to the meltable conductor 2 to suppress deformation of the meltable conductor 2.Type: ApplicationFiled: October 25, 2019Publication date: March 3, 2022Applicant: DEXERIALS CORPORATIONInventors: Yuji KIMURA, Chisato KOMORI, Koichi MUKAI
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Patent number: 10964495Abstract: A switch device capable of safely opening an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery. The device includes a first conductor connected to an external circuit and having a relatively high ionization tendency, and a second conductor arranged close to the first conductor and having a relatively low ionization tendency which is lower than that of the first conductor, a reaction part which electrically corrodes the first conductor is formed by a liquid between the first and second conductors.Type: GrantFiled: October 5, 2016Date of Patent: March 30, 2021Assignee: DEXERIALS CORPORATIONInventors: Yuji Furuuchi, Yoshihiro Yoneda, Koichi Mukai, Kazuyuki Sakakibara
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Publication number: 20200321175Abstract: A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes a conductor connected to an external circuit, and a reaction part including a liquid-soluble material which opens the conductor and the external circuit and which dissolves on contacting a liquid entering the device interior to electrically connect the conductor and the external circuit.Type: ApplicationFiled: June 24, 2020Publication date: October 8, 2020Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Yoshihiro YONEDA, Koichi MUKAI, Kazuyuki SAKAKIBARA
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Patent number: 10593494Abstract: A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes first and second conductors connected to an external circuit, and a reaction part including an insulating material which changes state on contact with a liquid, the first and second conductors being electrically connected or disconnected by the insulating material changing state on contact with the liquid.Type: GrantFiled: October 5, 2016Date of Patent: March 17, 2020Assignee: DEXERIALS CORPORATIONInventors: Yuji Furuuchi, Yoshihiro Yoneda, Koichi Mukai, Kazuyuki Sakakibara
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Publication number: 20190066953Abstract: A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes a conductor connected to an external circuit, and a reaction part including a liquid-soluble material which opens the conductor and the external circuit and which dissolves on contacting a liquid entering the device interior to electrically connect the conductor and the external circuit.Type: ApplicationFiled: October 5, 2016Publication date: February 28, 2019Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Yoshihiro YONEDA, Koichi MUKAI, Kazuyuki SAKAKIBARA
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Patent number: 10109439Abstract: To spread flux evenly across the entire surface of a rectangular meltable conductor, a protective element includes: an insulating substrate; a heat-generating resistor disposed on the insulating substrate; a first and a second electrodes laminated onto the insulating substrate; a heat-generating element extracting electrode overlapping the heat-generating resistor in a state electrically insulated therefrom and electrically connected to the heat-generating resistor on a current path between the first and the second electrodes; a rectangular meltable conductor laminated between the heat-generating element extracting electrode and the first and the second electrodes for interrupting a current path between the first electrode and the second electrode by being melted by heat; and a plurality of flux bodies disposed on the meltable conductor; wherein the flux bodies are disposed along the heat-generating resistor.Type: GrantFiled: April 24, 2014Date of Patent: October 23, 2018Assignee: DEXERIALS CORPORATIONInventors: Chisato Komori, Koichi Mukai, Kazutaka Furuta, Toshiaki Araki, Koji Ejima, Takashi Fujihata
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Publication number: 20180301302Abstract: A switch device capable of safely opening an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery. The device includes a first conductor connected to an external circuit and having a relatively high ionization tendency, and a second conductor arranged close to the first conductor and having a relatively low ionization tendency which is lower than that of the first conductor, a reaction part which electrically corrodes the first conductor is formed by a liquid between the first and second conductors.Type: ApplicationFiled: October 5, 2016Publication date: October 18, 2018Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Yoshihiro YONEDA, Koichi MUKAI, Kazuyuki SAKAKIBARA
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Publication number: 20180294118Abstract: A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes first and second conductors connected to an external circuit, and a reaction part including an insulating material which changes state on contact with a liquid, the first and second conductors being electrically connected or disconnected by the insulating material changing state on contact with the liquid.Type: ApplicationFiled: October 5, 2016Publication date: October 11, 2018Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Yoshihiro YONEDA, Koichi MUKAI, Kazuyuki SAKAKIBARA
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Patent number: 10032583Abstract: In a protective circuit substrate having a circuit substrate and a protective element, the protective element including: an insulating substrate; a heat-generating element; first and second electrodes laminated on the insulating substrate; a first and second connecting terminals provided on one side edge of a mounting surface to be mounted to the circuit substrate, the first connecting terminals being continuous with the first and second electrodes; a heat-generating element extracting electrode provided in a current path between the first and second electrodes and electrically connected to the heat-generating element; and a meltable conductor provided between the first and second electrodes, wherein the circuit substrate includes a region for mounting the protective element in which no electrode pattern other than a connecting electrode to the protective element is provided.Type: GrantFiled: February 17, 2016Date of Patent: July 24, 2018Assignee: DEXERIALS CORPORATIONInventors: Yuji Furuuchi, Takashi Fujihata, Koichi Mukai
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Patent number: 9870886Abstract: A protective element includes: a rectangurarly shaped insulating substrate; a heat-generating element formed on the insulating substrate; first and second electrodes laminated on a surface of the insulating substrate; first and second connecting terminals provided on a back surface of the insulating substrate and being continuous with the first and second electrodes; a heat-generating element extracting electrode provided on a current path between the first and the second electrodes and electrically connected to the heat-generating element; and a meltable conductor laminated on a region extending from the heat-generating element extracting electrode to the first and second electrodes and to be melted by heat to interrupt the current path between the first electrode and the second electrodes; wherein at least one of the corner portions of the insulating substrate is chamfered.Type: GrantFiled: February 17, 2016Date of Patent: January 16, 2018Assignee: DEXERIALS CORPORATIONInventors: Yuji Furuuchi, Takashi Fujihata, Koichi Mukai
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Patent number: 9859605Abstract: An antenna device includes a round plug having a rotation mechanism section on one end thereof, where round plug is removably attached to a round jack arranged in an electronic apparatus; and a rod antenna element. In the antenna device, the rod antenna element is connected to the rotation mechanism section of the round plug and rotatable in a predetermined direction.Type: GrantFiled: March 23, 2010Date of Patent: January 2, 2018Assignee: Sony Semiconductor Solutions CorporationInventors: Koichi Mukai, Yoshitaka Yoshino, Chisato Komori, Yuuji Miyazaki
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Publication number: 20170236665Abstract: In a protective circuit substrate having a circuit substrate and a protective element, the protective element including: an insulating substrate; a heat-generating element; first and second electrodes laminated on the insulating substrate; a first and second connecting terminals provided on one side edge of a mounting surface to be mounted to the circuit substrate, the first connecting terminals being continuous with the first and second electrodes; a heat-generating element extracting electrode provided in a current path between the first and second electrodes and electrically connected to the heat-generating element; and a meltable conductor provided between the first and second electrodes, wherein the circuit substrate includes a region for mounting the protective element in which no electrode pattern other than a connecting electrode to the protective element is provided.Type: ApplicationFiled: February 17, 2016Publication date: August 17, 2017Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Takashi FUJIHATA, Koichi MUKAI
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Publication number: 20170236666Abstract: A protective element includes: a rectangurarly shaped insulating substrate; a heat-generating element formed on the insulating substrate; first and second electrodes laminated on a surface of the insulating substrate; first and second connecting terminals provided on a back surface of the insulating substrate and being continuous with the first and second electrodes; a heat-generating element extracting electrode provided on a current path between the first and the second electrodes and electrically connected to the heat-generating element; and a meltable conductor laminated on a region extending from the heat-generating element extracting electrode to the first and second electrodes and to be melted by heat to interrupt the current path between the first electrode and the second electrodes; wherein at least one of the corner portions of the insulating substrate is chamfered.Type: ApplicationFiled: February 17, 2016Publication date: August 17, 2017Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Takashi FUJIHATA, Koichi MUKAI
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Publication number: 20170236667Abstract: A protective element includes: an insulating substrate; a heat-generating element formed on the insulating substrate; first and second electrodes formed on side edges of a front surface of the insulating substrate; first and second connecting terminals provided on the back surface of the insulating substrate and being continuous with the electrodes; through-holes penetrating the front and back surfaces of the insulating substrate to connect the electrodes to the connecting terminals respectively; a heat-generating element extracting electrode electrically connected to the heat-generating element; and a meltable conductor laminated on a region extending from the heat-generating element extracting electrode to the electrodes and to be melted by heat to interrupt the current path between the electrodes; wherein the through-holes are formed at a central portion of the side edges of the insulating substrate on which the electrodes are formed.Type: ApplicationFiled: February 17, 2016Publication date: August 17, 2017Applicant: DEXERIALS CORPORATIONInventors: Yuji FURUUCHI, Takashi FUJIHATA, Koichi MUKAI
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Patent number: 9337671Abstract: A protective element including a substrate having a first insulating member and a concave portion formed thereon, a heating body layered on the concave portion of the substrate, a second insulating member layered on the substrate so as to cover at least covering the heating body, first and second electrodes layered on a surface of the substrate on which the second insulating member is layered, a heating body electrode layered on the second insulating member so as to be superimposed with the heating body, and electrically connected to a current path between the first and the second electrodes as well as onto and the heating body, and a low-melting point metal layered from the heating body electrode toward the first and the second electrodes configured to cause a blowout of the current path between the first and the second electrodes by heating.Type: GrantFiled: December 17, 2012Date of Patent: May 10, 2016Assignee: Dexerials CorporationInventors: Chisato Komori, Yuji Furuuchi, Yoshihiro Yoneda, Koichi Mukai, Koji Ejima, Takashi Fujihata, Kazutaka Furuta, Toshiaki Araki
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Patent number: D976215Type: GrantFiled: July 7, 2021Date of Patent: January 24, 2023Assignee: Dexerials CorporationInventors: Koichi Mukai, Yoshihiro Yoneda
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Patent number: D976216Type: GrantFiled: July 9, 2021Date of Patent: January 24, 2023Assignee: Dexerials CorporationInventors: Koichi Mukai, Yoshihiro Yoneda
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Patent number: D981966Type: GrantFiled: July 7, 2021Date of Patent: March 28, 2023Assignee: Dexerials CorporationInventors: Koichi Mukai, Yoshihiro Yoneda
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Patent number: D1011300Type: GrantFiled: February 28, 2022Date of Patent: January 16, 2024Assignee: Dexerials CorporationInventor: Koichi Mukai