Patents by Inventor Yasuhiro Naka

Yasuhiro Naka 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).

  • Publication number: 20210091385
    Abstract: Provided is a sheet-type cell with excellent reliability. The sheet-type cell of the present invention includes power generation elements, including a positive electrode, a negative electrode, a separator, and an electrolyte solution, and a sheet-type outer case made of a resin film in which the power generation elements are contained. The electrolyte solution is an aqueous electrolyte solution. The resin film has an electrically insulating moisture barrier layer. The sheet-type cell is a primary cell. The moisture barrier layer of the resin film is preferably composed of at least an inorganic oxide. The pH of the electrolyte solution is preferably 3 or more and less than 12.
    Type: Application
    Filed: March 13, 2019
    Publication date: March 25, 2021
    Applicant: Maxell Holdings, Ltd.
    Inventors: Takahiro FURUTANI, Yasuhiro NAKA, Hiroaki ONO, Mitsutoshi WATANABE
  • Publication number: 20200373527
    Abstract: Provided is a waterproof device that is impervious to water and can also use an air cell as a power source. The waterproof device of the present disclosure is worn on the body and includes a circuit unit, a power source, and an exterior package that protects the circuit unit and the power source. At least a part of the exterior package is composed of a water-repellent air-permeable sheet. The water-repellent air-permeable sheet has a water pressure resistance of 12 kPa or more.
    Type: Application
    Filed: August 24, 2018
    Publication date: November 26, 2020
    Applicant: Maxell Holdings, Ltd.
    Inventors: Takahiro FURUTANI, Yasuhiro NAKA
  • 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: 10060996
    Abstract: A gradient magnetic field coil device has a main coil arrangement formed by embedding into first resin multiple main coils for generating a gradient magnetic field and a leakage magnetic field, and a shield coil arrangement formed by embedding into second resin multiple shield coils for suppressing the leakage magnetic field, wherein the shield coil arrangement includes a facing area that faces the main coil arrangement and is fixed to the main coil arrangement, and a protruding area that protrudes beyond the main coil arrangement, wherein insulated reinforcing members are embedded into the second resin in the protruding area. Multiple reinforcing members are arranged in a circumferential direction of the shield coil arrangement, and the second resin is preferably filled between the adjacent-to-each-other reinforcing members. The reinforcing members are preferably arranged toward the main coil arrangement with respect to the shield coils.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 28, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Yasuhiro Naka, Akira Kurome
  • 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: 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: 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: 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: 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
  • Patent number: D826869
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: August 28, 2018
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yuya Sakurai, Yasuhiro Naka, Hideo Adachi, Yuji Shiba, Yuki Tashima
  • Patent number: D869401
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: December 10, 2019
    Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yuya Sakurai, Yasuhiro Naka, Hideo Adachi, Koujun Konishi, Mitsuya Itou