Patents by Inventor Koujun KONISHI
Koujun KONISHI 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: 20230170172Abstract: A hermetically sealed electromagnetic contactor includes a main contact unit (21) configured to open and close an electrical path of a main circuit by moving along a predetermined opening/closing direction, an electromagnet unit (23) configured to switch opening/closing of the main contact unit (21), a container body (12) made of resin inside which the main contact unit (21) and the electromagnet unit (23) are arranged, an auxiliary contact unit (22) disposed outside the container body (12) on one side in the opening/closing direction of the main contact unit (21) and configured to open and close an electrical path of an auxiliary circuit by moving along the opening/closing direction in conjunction with the main contact unit (21), and an auxiliary contact housing portion (13) made of resin inside which the auxiliary contact unit (22) is arranged, the auxiliary contact housing portion (13) communicating with the inside of the container body (12), in which the insides of the container body (12) and the auxiliarType: ApplicationFiled: December 28, 2022Publication date: June 1, 2023Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Takashi TSUTSUMI, Koujun KONISHI, Hideo ADACHI
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Publication number: 20230154710Abstract: A hermetically sealed electromagnetic contactor includes a pair of fixed contact pieces having fixed contacts, a movable contact piece having a pair of movable contacts and capable of coming into contact with and being separated from the fixed contacts of the pair of fixed contact pieces, an electromagnet unit configured to drive the movable contact piece, a hermetically sealed container configured to house the pair of fixed contact pieces, the movable contact piece, and the electromagnet unit in the same space in a hermetically sealed manner and being filled with arc-extinguishing gas, and two pairs of arc-extinguishing permanent magnets arranged inside the hermetically sealed container and configured to stretch arcs generated between the fixed contacts of the pair of fixed contact pieces and the pair of movable contacts of the movable contact piece.Type: ApplicationFiled: December 30, 2022Publication date: May 18, 2023Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Takashi TSUTSUMI, Koujun KONISHI, Hideo ADACHI
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Publication number: 20230145550Abstract: A gas filling structure includes a through-hole (91) formed in a hermetically sealed container (11) made of resin to fill the hermetically sealed container (11) with gas and a screw (92) fastened to the through-hole (91) to seal the through-hole (91).Type: ApplicationFiled: January 3, 2023Publication date: May 11, 2023Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Takashi TSUTSUMI, Koujun KONISHI, Hideo ADACHI
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Publication number: 20230134636Abstract: A hermetically sealed electromagnetic contactor including: a main contact unit including a pair of main fixed contact pieces, each of the main fixed contact pieces having a main fixed contact at one end and a terminal portion to be connected to a main circuit at the other end, and a main movable contact piece having a pair of main movable contacts configured to come into contact with and be separated from the main fixed contacts and configured to open and close an electrical path of the main circuit; a contact support configured to support the main movable contact piece; an electromagnet unit configured to switch opening/closing of the main contact unit via the contact support; and a hermetically sealed container made of resin on an inside of which the main contact unit and the electromagnet unit are arranged, the hermetically sealed container having the inside filled with insulating gas.Type: ApplicationFiled: December 29, 2022Publication date: May 4, 2023Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Takashi TSUTSUMI, Koujun KONISHI, Hideo ADACHI
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Publication number: 20190088432Abstract: A contact device includes a main contact mechanism including a pair of main fixed contacts and a main movable contact elastically supported by a movable shaft and disposed to contact with and separate from the pair of main fixed contacts; an auxiliary contact mechanism disposed at a different position from the main contact mechanism, and including a pair of auxiliary fixed contacts and an auxiliary movable contact disposed in an insulating auxiliary contact holding member connected to the movable shaft to contact with and separate from the pair of auxiliary fixed contacts; and a contact housing portion housing the main contact mechanism and the auxiliary contact mechanism. The movable shaft includes a main contact support portion for supporting the main movable contact, and an auxiliary contact support portion for supporting the auxiliary contact holding member. The main contact support portion is divided from the auxiliary contact support portion.Type: ApplicationFiled: November 19, 2018Publication date: March 21, 2019Inventors: Yuki TASHIMA, Kouetsu TAKAYA, Hideo ADACHI, Yasuhiro NAKA, Yuya SAKURAI, Koujun KONISHI
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Publication number: 20190066956Abstract: There is provided a contact device including an accommodating case that accommodates a main contact point mechanism having fixed contacts, an external terminal that is disposed outside the accommodating case, and a terminal board that passes through the accommodating case and electrically connects the fixed contacts and the external terminal together. The terminal board has a bent portion surface-contacting with side surfaces of the accommodating case.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Inventors: Koujun KONISHI, Yuya SAKURAI, Hideo ADACHI, Yasuhiro NAKA, Kouetsu TAKAYA
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Patent number: 10170261Abstract: The contact device includes a main contact mechanism that includes a pair of main fixed contacts and a main movable contact elastically supported by a movable shaft and disposed to be contactable with and separable from the pair of main fixed contacts, an auxiliary contact mechanism that includes a pair of auxiliary fixed contacts and auxiliary movable contacts disposed in an auxiliary contact holding member connected to the movable shaft so as to be contactable with and separable from the pair of auxiliary fixed contacts, and a contact housing portion that houses the main contact mechanism and the auxiliary contact mechanism. The movable shaft has a main contact support portion supporting the main movable contact and an auxiliary contact support portion supporting the auxiliary contact holding member. The main contact support portion and the auxiliary contact support portion are connected to each other via the auxiliary contact holding member.Type: GrantFiled: March 15, 2017Date of Patent: January 1, 2019Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yuki Tashima, Kouetsu Takaya, Hideo Adachi, Yasuhiro Naka, Yuya Sakurai, Koujun Konishi
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Patent number: 10153115Abstract: To provide an electromagnetic contactor that enables electrical connection work of connecting the electromagnetic contactor to another electrical component disposed in a current path to be performed easily and efficiently. An electromagnetic contactor includes a main contact portion; an auxiliary contact portion; a contact housing case that houses the main contact portion and the auxiliary contact portion; an electromagnet unit that drives a movable plunger coupled to a connecting shaft of the main contact portion; main contact electrodes project out of a case wall of the contact housing case to an outside; auxiliary contact electrodes that are connected to a pair of fixed contacts of the auxiliary contact portion and project out of the case wall to an outside; and an auxiliary contact external terminal portion that is connected to the auxiliary contact electrodes and is arranged on a portion of the case wall.Type: GrantFiled: March 15, 2017Date of Patent: December 11, 2018Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Kouetsu Takaya, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Koujun Konishi
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Publication number: 20180269017Abstract: A contact device includes a main contact mechanism including a pair of main stationary contact members and a main movable contact member; an auxiliary contact mechanism disposed at a position different from that of the main contact mechanism and including auxiliary stationary contact members and auxiliary movable contact members; a movable shaft configured to operate the main movable contact member and the auxiliary movable contact member in conjunction with each other; rod-shaped auxiliary terminals electrically connected to the auxiliary stationary contact members; a cover plate having holes through which the auxiliary terminals penetrate; an insulating case configured to house the main contact mechanism and the auxiliary contact mechanism and including an auxiliary terminal case section configured to separate the main contact mechanism and the auxiliary contact mechanism from each other; and a cylindrical body covering the insulating case exteriorly and joined to the cover plate.Type: ApplicationFiled: May 22, 2018Publication date: September 20, 2018Inventors: Koujun KONISHI, Yuki TASHIMA, Hideo ADACHI, Yasuhiro NAKA, Kouetsu TAKAYA, Yuya SAKURAI
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Patent number: 10032585Abstract: There is provided an electromagnetic contactor which can easily and inexpensively change the DC operation type to the AC operation type. The electromagnetic contactor includes an electromagnet that opens and closes a contact by using DC excitation of a coil, a lower case that accommodates the electromagnet, external coil terminals that are disposed in the lower case beside the electromagnet, and a substrate that is accommodated in the lower case, and that has a rectifier circuit whose input side is connected to the external coil terminals and whose output side is connected to the coil so as to output a DC after converting an input AC to the DC. An inner surface of the lower case has a groove between the electromagnet and the external coil terminals. The substrate is held by being inserted into the groove.Type: GrantFiled: March 6, 2017Date of Patent: July 24, 2018Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Kouetsu Takaya, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Koujun Konishi
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Publication number: 20180197707Abstract: To provide an electromagnetic contactor that enables electrical connection work of connecting the electromagnetic contactor to another electrical component disposed in a current path to be performed easily and efficiently. An electromagnetic contactor includes a main contact portion; an auxiliary contact portion; a contact housing case that houses the main contact portion and the auxiliary contact portion; an electromagnet unit that drives a movable plunger coupled to a connecting shaft of the main contact portion; main contact electrodes project out of a case wall of the contact housing case to an outside; auxiliary contact electrodes that are connected to a pair of fixed contacts of the auxiliary contact portion and project out of the case wall to an outside; and an auxiliary contact external terminal portion that is connected to the auxiliary contact electrodes and is arranged on a portion of the case wall.Type: ApplicationFiled: March 15, 2017Publication date: July 12, 2018Inventors: Kouetsu TAKAYA, Yuki TASHIMA, Hideo ADACHI, Yasuhiro NAKA, Koujun KONISHI
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Publication number: 20180158634Abstract: There is provided an electromagnetic contactor which can easily and inexpensively change the DC operation type to the AC operation type. The electromagnetic contactor includes an electromagnet that opens and closes a contact by using DC excitation of a coil, a lower case that accommodates the electromagnet, external coil terminals that are disposed in the lower case beside the electromagnet, and a substrate that is accommodated in the lower case, and that has a rectifier circuit whose input side is connected to the external coil terminals and whose output side is connected to the coil so as to output a DC after converting an input AC to the DC. An inner surface of the lower case has a groove between the electromagnet and the external coil terminals. The substrate is held by being inserted into the groove.Type: ApplicationFiled: March 6, 2017Publication date: June 7, 2018Inventors: Kouetsu TAKAYA, Yuki TASHIMA, Hideo ADACHI, Yasuhiro NAKA, Koujun KONISHI
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Publication number: 20180144893Abstract: To provide an electromagnetic contactor that allows the extension space for arcs to be enlarged without having to enlarge the size in a direction in which a main contact mechanism housing chamber and an auxiliary contact mechanism housing chamber are arranged. An electromagnetic contactor includes a partitioning wall for partitioning a main contact mechanism housing chamber and an auxiliary contact mechanism housing chamber. The partitioning wall has a pair of arc extension recesses that is formed by indenting the partitioning wall toward the side of the auxiliary contact mechanism housing chamber.Type: ApplicationFiled: January 22, 2018Publication date: May 24, 2018Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Koujun Konishi, Kouetsu Takaya, Hideo Adachi, Yasuhiro Naka, Yuki Tashima
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Publication number: 20170358413Abstract: The contact device includes a main contact mechanism that includes a pair of main fixed contacts and a main movable contact elastically supported by a movable shaft and disposed to be contactable with and separable from the pair of main fixed contacts, an auxiliary contact mechanism that includes a pair of auxiliary fixed contacts and auxiliary movable contacts disposed in an auxiliary contact holding member connected to the movable shaft so as to be contactable with and separable from the pair of auxiliary fixed contacts, and a contact housing portion that houses the main contact mechanism and the auxiliary contact mechanism. The movable shaft has a main contact support portion supporting the main movable contact and an auxiliary contact support portion supporting the auxiliary contact holding member. The main contact support portion and the auxiliary contact support portion are connected to each other via the auxiliary contact holding member.Type: ApplicationFiled: March 15, 2017Publication date: December 14, 2017Inventors: Yuki TASHIMA, Kouetsu TAKAYA, Hideo ADACHI, Yasuhiro NAKA, Yuya SAKURAI, Koujun KONISHI
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Patent number: D869401Type: GrantFiled: October 2, 2018Date of Patent: December 10, 2019Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yuya Sakurai, Yasuhiro Naka, Hideo Adachi, Koujun Konishi, Mitsuya Itou