Patents by Inventor Kouetsu Takaya

Kouetsu Takaya 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: 10446348
    Abstract: There is provided an electromagnetic contactor that ensures appropriately preventing a foreign matter from invading an auxiliary contact mechanism housing chamber from a main contact mechanism housing chamber via a through-hole on a partition wall; and a foreign matter from invading the main contact mechanism housing chamber from the auxiliary contact mechanism housing chamber via the through-hole on the partition wall. With an electromagnetic contactor (1), a main contact mechanism housing chamber (A) and an auxiliary contact mechanism housing chamber (B) are partitioned by a partition wall (10). The partition wall (10) has a through-hole (10a) through which a coupling shaft (34) is inserted. A foreign matter invasion prevention mechanism (60) is provided at a peripheral area of the through-hole (10a).
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: October 15, 2019
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yuki Tashima, Kouetsu Takaya, Hideo Adachi, Yasuhiro Naka, Yuya Sakurai
  • Publication number: 20190088432
    Abstract: 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: Application
    Filed: November 19, 2018
    Publication date: March 21, 2019
    Inventors: Yuki TASHIMA, Kouetsu TAKAYA, Hideo ADACHI, Yasuhiro NAKA, Yuya SAKURAI, Koujun KONISHI
  • Publication number: 20190066956
    Abstract: 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: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventors: Koujun KONISHI, Yuya SAKURAI, Hideo ADACHI, Yasuhiro NAKA, Kouetsu TAKAYA
  • Patent number: 10170261
    Abstract: 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: Grant
    Filed: March 15, 2017
    Date of Patent: January 1, 2019
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yuki Tashima, Kouetsu Takaya, Hideo Adachi, Yasuhiro Naka, Yuya Sakurai, Koujun Konishi
  • Patent number: 10153115
    Abstract: 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: Grant
    Filed: March 15, 2017
    Date of Patent: December 11, 2018
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Kouetsu Takaya, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Koujun Konishi
  • Publication number: 20180269017
    Abstract: 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: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Inventors: Koujun KONISHI, Yuki TASHIMA, Hideo ADACHI, Yasuhiro NAKA, Kouetsu TAKAYA, Yuya SAKURAI
  • Patent number: 10056200
    Abstract: An electromagnetic contactor includes a contact mechanism including a pair of fixed contacts having fixed contact portions and interposed in a current conduction path, and a movable contact having a pair of movable contact portions capable of contacting to and separating from the pair of fixed contact portions. At least one of the pair of fixed contacts or the movable contact is formed in a shape to form magnetic fields generating Lorentz forces opposing electromagnetic repulsion forces generated in an opening direction between the fixed contact portions and the movable contact portions when current is conducted. External connection conductors are connected to external connection terminals of the fixed contacts, an attachment direction of fixed portions fixed to the external connection terminal of the fixed contacts is set to cross a current flow direction flowing through the movable contact.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: August 21, 2018
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Osamu Kashimura, Masaru Isozaki, Hiroyuki Tachikawa, Kouetsu Takaya, Yasuhiro Naka, Yuji Shiba
  • Patent number: 10032585
    Abstract: 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: Grant
    Filed: March 6, 2017
    Date of Patent: July 24, 2018
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Kouetsu Takaya, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Koujun Konishi
  • Publication number: 20180197707
    Abstract: 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: Application
    Filed: March 15, 2017
    Publication date: July 12, 2018
    Inventors: Kouetsu TAKAYA, Yuki TASHIMA, Hideo ADACHI, Yasuhiro NAKA, Koujun KONISHI
  • Publication number: 20180158635
    Abstract: There is provided an electromagnetic contactor that ensures appropriately preventing a foreign matter from invading an auxiliary contact mechanism housing chamber from a main contact mechanism housing chamber via a through-hole on a partition wall; and a foreign matter from invading the main contact mechanism housing chamber from the auxiliary contact mechanism housing chamber via the through-hole on the partition wall. With an electromagnetic contactor (1), a main contact mechanism housing chamber (A) and an auxiliary contact mechanism housing chamber (B) are partitioned by a partition wall (10). The partition wall (10) has a through-hole (10a) through which a coupling shaft (34) is inserted. A foreign matter invasion prevention mechanism (60) is provided at a peripheral area of the through-hole (10a).
    Type: Application
    Filed: January 23, 2018
    Publication date: June 7, 2018
    Inventors: Yuki TASHIMA, Kouetsu TAKAYA, Hideo ADACHI, Yasuhiro NAKA, Yuya SAKURAI
  • Publication number: 20180158634
    Abstract: 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: Application
    Filed: March 6, 2017
    Publication date: June 7, 2018
    Inventors: Kouetsu TAKAYA, Yuki TASHIMA, Hideo ADACHI, Yasuhiro NAKA, Koujun KONISHI
  • Publication number: 20180144893
    Abstract: 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: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Koujun Konishi, Kouetsu Takaya, Hideo Adachi, Yasuhiro Naka, Yuki Tashima
  • Publication number: 20180144894
    Abstract: A contact device and an electromagnetic contactor using the contact device. The contact device has: a main contact including a pair of fixed contact elements arranged at a predetermined distance from each other and a movable contact element elastically supported by a connecting shaft and arranged to be contactable with and separable from the pair of fixed contact elements; an auxiliary contact arranged at a position different from the main contact and including a pair of fixed contacts arranged at a predetermined distance from each other and a movable contact connected to the connecting shaft and arranged to be contactable with and separable from the pair of fixed contacts; a contact housing configured to house the main contact and the auxiliary contact; and external connection terminals electrically connected to the pair of fixed contacts of the auxiliary contact and projecting from the contact housing.
    Type: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Kouetsu TAKAYA, Yuki Tashima, Hideo Adachi, Yasuhiro Naka, Yuya Sakurai
  • Publication number: 20170358413
    Abstract: 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: Application
    Filed: March 15, 2017
    Publication date: December 14, 2017
    Inventors: Yuki TASHIMA, Kouetsu TAKAYA, Hideo ADACHI, Yasuhiro NAKA, Yuya SAKURAI, Koujun KONISHI
  • Patent number: 9673008
    Abstract: An electromagnetic switch includes a contact housing case; a plurality of contact mechanisms each having a fixed contact and a movable contact contacting to and separating from the fixed contact, and disposed in parallel inside the contact housing case; a movable contact holding portion holding the movable contacts of the plurality of contact mechanisms; and an electromagnet unit having a movable plunger moving the movable contact holding portion.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 6, 2017
    Assignees: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Hiroyuki Tachikawa, Masaru Isozaki, Osamu Kashimura, Kouetsu Takaya
  • Patent number: 9653222
    Abstract: A contact device includes a pair of fixed contacts fixedly disposed inside an arc extinguishing chamber and maintaining a predetermined interval from each other; a movable contact disposed inside the arc extinguishing chamber, and contacting to and separating from the pair of fixed contacts; a first arc root movement promotion portion formed on the pair of fixed contacts, and promoting a movement of a root of an arc in a direction away from the movable contact, the arc being generated when contacts are opened in which the movable contact moves away from the pair of fixed contacts; and a second arc root movement promotion portion formed on the movable contact, and promoting a movement of the root of the arc in a direction away from the relevant fixed contact.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 16, 2017
    Assignees: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Masaru Isozaki, Osamu Kashimura, Hiroyuki Tachikawa, Kouetsu Takaya, Yuji Shiba
  • Patent number: 9627154
    Abstract: An electromagnetic contactor includes a contact device having a pair of fixed contacts disposed to maintain a predetermined distance and a movable contact disposed so as to contact to and detach from the pair of fixed contacts. An insulating cover, which covers the pair of fixed contacts except for contact portions that contact the movable contact and covers an inner surface of an insulating plate that fixes and holds the fixed contacts, is mounted on the pair of fixed contacts.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: April 18, 2017
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki
  • Patent number: 9589739
    Abstract: An electromagnetic contactor includes a fixed contact portion, a movable contact portion disposed facing the fixed contact portion to contact to and separate from the fixed contact portion, and an arc extinguishing receptacle forming an arc extinguishing chamber housing the fixed contact portion and movable contact portion. Among contact surfaces of the movable contact portion and fixed contact portion facing each other, at least an opposing distance between a contact end portion of the fixed contact portion and a contact end portion of the movable contact portion positioned in a moving direction of an arc generated when separating the movable contact portion from the fixed contact portion is set to increase with increasing proximity to end surfaces on contact end portion sides.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: March 7, 2017
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki, Yuji Shiba
  • Patent number: 9583291
    Abstract: In an electromagnetic contactor, an arc generated when a movable contact separates from fixed contacts can be easily extinguished. The movable contact is disposed so as to be connectable to and detachable from the pair of fixed contacts disposed to maintain a predetermined interval inside a contact housing case having insulating properties, and an arc extinguishing chamber is formed in a position in which the movable contact and the pair of fixed contacts contact. At least the inner wall surface side of the arc extinguishing chamber contacting an arc is formed of a high thermal conductivity material having thermal conductivity higher than that of a synthetic resin molded material.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: February 28, 2017
    Assignees: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Osamu Kashimura, Masaru Isozaki, Kouetsu Takaya, Yuji Shiba
  • Patent number: D787449
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 23, 2017
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yuki Tashima, Hideo Adachi, Kouetsu Takaya, Yasuhiro Naka