Patents by Inventor Kazuaki Kashiwaguma

Kazuaki Kashiwaguma 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: 11873673
    Abstract: Provided is a single-axis hinge with a damper mechanism and a catch mechanism for allowing either one of a first member and a second member to be attached to a portion having a small attachment space. The single-axis hinge (2) includes the first member (11) attached to the main body, and the second member (12) which is attached to the door and can rotate with respect to the first member (11) around a shaft (13) facing a vertical direction. The catch mechanism (6) has a spring (8) and gives rotational force in a closing direction to the door in the vicinity of a closed position. The damper mechanism (7) has a linear damper (9) and damps rotation of the door when the door is closed. The catch mechanism (6) and the damper mechanism (7) are disposed on either one of the first member (11) and the second member (12).
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: January 16, 2024
    Assignee: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki Kashiwaguma, Shuu Shimizu, Naoya Iwata
  • Publication number: 20230193671
    Abstract: A hinge mounting structure is provided whose appearance can be improved. In a hinge mounting structure including a hinge (1) having a first piece (3) and a second piece (4) that are coupled together via a shaft (2) in such a manner as to be rotatable relative to each other, the first piece (3) being mounted on a side jamb (6), the second piece (4) being mounted on a door (5), the side jamb (6) is provided with a protruding portion (8) protruding forward of a wall surface, and a center (C) of the shaft (2) is placed backward of a front surface line (X) of the protruding portion (8) of the side jamb (6).
    Type: Application
    Filed: March 12, 2021
    Publication date: June 22, 2023
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki KASHIWAGUMA, Yukihiko OGAWA
  • Publication number: 20230193672
    Abstract: A hinge mounting structure is provided in which a door can open at a wide angle. In a hinge mounting structure including a hinge (1) having a first piece (3) and a second piece (4) that are coupled together via a shaft (2) in such a manner as to be rotatable relative to each other, the first piece (3) being mounted on a side jamb (6), the second piece (4) being mounted on an end face of a door (5), the side jamb (6) is provided with a protruding portion (8) protruding forward of a wall surface, and at least a part of the door (5) is backward of a front surface line (X), in an open position of the door (5).
    Type: Application
    Filed: March 12, 2021
    Publication date: June 22, 2023
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki KASHIWAGUMA, Yukihiko OGAWA
  • Publication number: 20220298841
    Abstract: Provided is a single-axis hinge with a damper mechanism and a catch mechanism for allowing either one of a first member and a second member to be attached to a portion having a small attachment space. The single-axis hinge (2) includes the first member (11) attached to the main body, and the second member (12) which is attached to the door and can rotate with respect to the first member (11) around a shaft (13) facing a vertical direction. The catch mechanism (6) has a spring (8) and gives rotational force in a closing direction to the door in the vicinity of a closed position. The damper mechanism (7) has a linear damper (9) and damps rotation of the door when the door is closed. The catch mechanism (6) and the damper mechanism (7) are disposed on either one of the first member (11) and the second member (12).
    Type: Application
    Filed: July 29, 2020
    Publication date: September 22, 2022
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki KASHIWAGUMA, Shuu SHIMIZU, Naoya IWATA
  • Publication number: 20220195769
    Abstract: A hinge device includes a first hinge body 10, a second hinge body 20 and a link mechanism 6. The link mechanism includes a moving link 30 having a rear end rotatably connected to the first hinge body and a front end rotatably connected to the second hinge body, a front connecting link 50 having a proximal end portion rotatably connected to a front end portion of the first hinge body and an intermediate portion rotatably connected to an intermediate portion of the moving link, and a supporting link having one end rotatably connected to a distal end of the front connecting link and the other end rotatably connected to the second hinge body. The front connecting link has a pair of resin spacers 57 interposed between the pair of side walls 11 of the first hinge body 10 and the pair of side walls 31 of the moving link.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 23, 2022
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki KASHIWAGUMA, Yukihiko OGAWA
  • Patent number: 11284729
    Abstract: A damper device set is provided which can mount a damper device on a door that is thin and has a constraint on the mounting position. A first fastening member is used to fix a mounting plate to a door. A second fastening member placed at a position different from the first fastening member in a thickness direction of the door is used to fix, to the mounting plate, a damper device including a case and a linear damper housed in the case. At least part of the linear damper overlaps at least part of the first fastening member in plan view of the door.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 29, 2022
    Assignee: SUGATSUNE KOGYO CO., LTD.
    Inventors: Tomohiro Nishiyama, Hiroki Nakayama, Kazuaki Kashiwaguma, Shuu Shimizu
  • Patent number: 11118389
    Abstract: Provided is a retracting device comprising a main arm and a sub-arm wherein appearance can be improved. An arm (5) has a main arm (7) and a sub-arm (8) such that an acceptance portion (25) for accepting a receiving part (reception part) (6) is formed between these. The main arm (7) and the sub-arm (8) are configured so that the main arm (7) and the sub-arm (8) rotate by way of: the acceptance portion (25) being closed in a hold position; the acceptance portion (25) opening by the receiving part (reception part) (6) coming into contact with the main arm (7) in the hold position; and an end portion (21) of the main arm (7) and an end portion (24) of the sub-arm (8) coming into contact while the acceptance portion (25) is opened.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 14, 2021
    Assignee: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki Kashiwaguma, Shuu Shimizu, Naoya Iwata
  • Publication number: 20210025209
    Abstract: Provided is a retracting device comprising a main arm and a sub-arm wherein appearance can be improved. An arm (5) has a main arm (7) and a sub-arm (8) such that an acceptance portion (25) for accepting a receiving part (reception part) (6) is formed between these. The main arm (7) and the sub-arm (8) are configured so that the main arm (7) and the sub-arm (8) rotate by way of: the acceptance portion (25) being closed in a hold position; the acceptance portion (25) opening by the receiving part (reception part) (6) coming into contact with the main arm (7) in the hold position; and an end portion (21) of the main arm (7) and an end portion (24) of the sub-arm (8) coming into contact while the acceptance portion (25) is opened.
    Type: Application
    Filed: February 15, 2019
    Publication date: January 28, 2021
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuaki KASHIWAGUMA, Shuu SHIMIZU, Naoya IWATA
  • Publication number: 20190374047
    Abstract: A damper device set is provided which can mount a damper device on a door that is thin and has a constraint on the mounting position. A first fastening member is used to fix a mounting plate to a door. A second fastening member placed at a position different from the first fastening member in a thickness direction of the door is used to fix, to the mounting plate, a damper device including a case and a linear damper housed in the case. At least part of the linear damper overlaps at least part of the first fastening member in plan view of the door.
    Type: Application
    Filed: December 18, 2017
    Publication date: December 12, 2019
    Inventors: Tomohiro NISHIYAMA, Hiroki NAKAYAMA, Kazuaki KASHIWAGUMA, Shuu SHIMIZU
  • Patent number: 9353562
    Abstract: Provided is a door opening and closing device that includes: a main opening and closing device body attached to a housing; a mounting member attached to a door; an arm pivotably provided to the main opening and closing device body, the arm applying force to the door via the mounting member in an opening direction and/or a closing direction; a slider provided to the main opening and closing device body to be slidable in one direction; an urging unit for urging the slider in the one direction; a transmission mechanism for transmitting urging force of the urging unit to the arm; and a door restraint link pivotably linked to the arm at a position away from the center of pivot of the arm, pivotably linked to the mounting member, and slidably linked to the main opening and closing device body so that the door moves in a certain manner.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: May 31, 2016
    Assignee: SUGATSUNE KOGYO CO., LTD.
    Inventors: Kazuyoshi Oshima, Kazuaki Kashiwaguma, Masaya Suzuki
  • Patent number: 9181743
    Abstract: Provided is a door opening/closing device unit which is capable of preventing shifting of the mounting position of a connecting rod to door opening/closing devices and facilitating the mounting work. The door opening/closing device unit has at least one support member 8 mountable on a housing 1, a pair of door opening/closing devices 4 for moving a door 2 relative to the housing 1 and a connecting member 5 for connecting the door opening/closing devices so as to synchronize operations of the door opening/closing devices. First the support member 8 is mounted on the housing 1, and then, at least one of the paired door opening/closing devices 4 connected by the connecting member 5 is mounted on the one support member 8.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: November 10, 2015
    Assignee: SUGATSUNE KOGYO CO., LTD.
    Inventor: Kazuaki Kashiwaguma
  • Publication number: 20150240546
    Abstract: Provided is a door opening and closing device that includes: a main opening and closing device body attached to a housing; a mounting member attached to a door; an arm pivotably provided to the main opening and closing device body, the arm applying force to the door via the mounting member in an opening direction and/or a closing direction; a slider provided to the main opening and closing device body to be slidable in one direction; an urging unit for urging the slider in the one direction; a transmission mechanism for transmitting urging force of the urging unit to the arm; and a door restraint link pivotably linked to the arm at a position away from the center of pivot of the arm, pivotably linked to the mounting member, and slidably linked to the main opening and closing device body so that the door moves in a certain manner.
    Type: Application
    Filed: September 20, 2013
    Publication date: August 27, 2015
    Applicant: SUGATSUNE KOGYO CO., LT.D.
    Inventors: Kazuyoshi Oshima, Kazuaki Kashiwaguma, Masaya Suzuki
  • Patent number: 8894162
    Abstract: A stay for opening and closing of a door does not become a hindrance when the door is open and is visually uncluttered. The stay has: a main body mounted to a housing; an arm having one end rotatably connected to the main body; a biasing element on the main body and biasing the arm so the arm rotates in at least one direction; an arm slider mounted to the arm and slidable in the longitudinal direction of the arm; and a mounting seat installed on the door and rotatably connected to the slider. As the slider is slidable relative to the arm and rotatable relative to the mounting seat installed on the door, an opening and closing force can be transmitted to the door from the one arm without requiring two links. Thus, the stay does not become a hindrance to a user and is visually uncluttered.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: November 25, 2014
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Kazuaki Kashiwaguma
  • Patent number: 8739468
    Abstract: Provided is a door opening and closing device wherein the device width can be made small and wherein the movement of a retraction arm can be stabilized. In a body case (102) which is slender and extends in one direction, there is provided an arm block (121) for a retraction arm (104) which rotates from the open state to the closed state. On one side of the body case (102), there is provided a first slider (134) which, being interlocked with the rotation of the arm block (121), makes linear movements in one direction. In the body case (102), there is provided an arm shaft (105) which serves as the center of rotation of the arm block (121). A second slider (131) which, being interlocked with the rotation of the arm block (121), makes linear movements in one direction, is provided opposite the first slider (134), in such a way as to have the arm shaft (105) held between the first and second sliders (134, 131).
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: June 3, 2014
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventors: Koushi Yamaguchi, Kazuaki Kashiwaguma, Mitsuru Sugiura
  • Publication number: 20130026318
    Abstract: Provided is a door opening/closing device with a support member capable of positioning the door opening/closing device at a proper position of a housing and facilitating the mounting work of the door opening/closing device to the housing. The door opening/closing device with a support member has the support member 8 which is mountable on a housing 1; and a door opening/closing device which is mounted on the support member 8 and configured to move a door 2 relative to the housing 1. The support member 8 has a first positioning part 10a for positioning at a front surface of one of an upper plate 1a and a side wall 1b of the housing 1, and a second positioning part 10b which is able to be placed against the other of the upper plate 1a and the side wall 1b of the housing 1.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventor: Kazuaki KASHIWAGUMA
  • Publication number: 20130026114
    Abstract: Provided is a door opening/closing device unit which is capable of preventing shifting of the mounting position of a connecting rod to door opening/closing devices and facilitating the mounting work. The door opening/closing device unit has at least one support member 8 mountable on a housing 1, a pair of door opening/closing devices 4 for moving a door 2 relative to the housing 1 and a connecting member 5 for connecting the door opening/closing devices so as to synchronize operations of the door opening/closing devices. First the support member 8 is mounted on the housing 1, and then, at least one of the paired door opening/closing devices 4 connected by the connecting member 5 is mounted on the one support member 8.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 31, 2013
    Applicant: SUGATSUNE KOGYO CO., LTD
    Inventor: Kazuaki KASHIWAGUMA
  • Publication number: 20120317883
    Abstract: Provided is a door opening and closing device wherein the device width can be made small and wherein the movement of a retraction arm can be stabilized. In a body case (102) which is slender and extends in one direction, there is provided an arm block (121) for a retraction arm (104) which rotates from the open state to the closed state. On one side of the body case (102), there is provided a first slider (134) which, being interlocked with the rotation of the arm block (121), makes linear movements in one direction. In the body case (102), there is provided an arm shaft (105) which serves as the center of rotation of the arm block (121). A second slider (131) which, being interlocked with the rotation of the arm block (121), makes linear movements in one direction, is provided opposite the first slider (134), in such a way as to have the arm shaft (105) held between the first and second sliders (134, 131).
    Type: Application
    Filed: May 14, 2010
    Publication date: December 20, 2012
    Applicant: SUGATSUNE KOGYO CO., LTD.
    Inventors: Koushi Yamaguchi, Kazuaki Kashiwaguma, Mitsuru Sugiura
  • Patent number: D716129
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventors: Kazuaki Kashiwaguma, Mitsuru Sugiura
  • Patent number: D716130
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventors: Kazuaki Kashiwaguma, Mitsuru Sugiura
  • Patent number: D744315
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: December 1, 2015
    Assignee: SUGATSUNE KOGYO CO., LTD.
    Inventors: Manabu Hasegawa, Kazuaki Kashiwaguma