Patents by Inventor Tomohisa Kurita

Tomohisa Kurita 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: 11121494
    Abstract: A contact includes a thin plate member having elasticity and conductivity, is disposed between a first member and a second member, and electrically connects the first member and the second member via the thin plate member, and the contact includes a base portion and a movable portion. The base portion has a bonding surface to be bonded to the first member by soldering. The movable portion includes: a contact portion that contacts with the second member; and a connecting portion that connects to the base portion, and is configured to be elastically deformable with respect to the base portion. The connecting portion is gradually separated from the first member. A predetermined range from a connecting position of the connecting portion with the base portion is lower in solder wettability than the bonding surface.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: September 14, 2021
    Assignee: Kitagawa Industries Co., Ltd.
    Inventor: Tomohisa Kurita
  • Patent number: 11088484
    Abstract: A contact member for which downsizing beyond conventional products is feasible is provided. The contact member includes a base portion, a contact portion, and a spring portion. The spring portion includes a first extension portion, a second extension portion, a third extension portion, and a fourth extension portion. The first extension portion is bent from a rear end of the base portion and extends upward. The second extension portion is bent from an upper end of the first extension portion and extends forward, and its upper surface is made to be a sucked surface that is capable of being attracted to a suction nozzle of an automatic mounting machine. The third extension portion is bent from a front end of the second extension portion and extends forward obliquely downward. The fourth extension portion is bent from a front end of the third extension portion, extends upward obliquely rearward, and is provided with the contact portion on a distal end side in its extension direction.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: August 10, 2021
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita
  • Publication number: 20210013658
    Abstract: A contact includes a thin plate member having elasticity and conductivity, is disposed between a first member and a second member, and electrically connects the first member and the second member via the thin plate member, and the contact includes a base portion and a movable portion. The base portion has a bonding surface to be bonded to the first member by soldering. The movable portion includes: a contact portion that contacts with the second member; and a connecting portion that connects to the base portion, and is configured to be elastically deformable with respect to the base portion. The connecting portion is gradually separated from the first member. A predetermined range from a connecting position of the connecting portion with the base portion is lower in solder wettability than the bonding surface.
    Type: Application
    Filed: April 18, 2019
    Publication date: January 14, 2021
    Inventor: Tomohisa KURITA
  • Publication number: 20200343663
    Abstract: A contact member for which downsizing beyond conventional products is feasible is provided. The contact member includes a base portion, a contact portion, and a spring portion. The spring portion includes a first extension portion, a second extension portion, a third extension portion, and a fourth extension portion. The first extension portion is bent from a rear end of the base portion and extends upward. The second extension portion is bent from an upper end of the first extension portion and extends forward, and its upper surface is made to be a sucked surface that is capable of being attracted to a suction nozzle of an automatic mounting machine. The third extension portion is bent from a front end of the second extension portion and extends forward obliquely downward. The fourth extension portion is bent from a front end of the third extension portion, extends upward obliquely rearward, and is provided with the contact portion on a distal end side in its extension direction.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Inventor: Tomohisa KURITA
  • Patent number: 10014610
    Abstract: A contact in one aspect of the present disclosure comprises a fixing portion, an elastic contact piece, and a pair of projecting tabs, which are formed as an integrated entity from a metal thin plate. The projecting tabs project from the fixing portion at positions on both sides of the elastic contact piece. A dimension of the elastic contact piece in a width direction, which matches the direction of an interval between the projecting tabs, is a first dimension. The projecting tabs are formed such that each projecting tab is a flat plate having the same thickness as the thin plate. The projecting tabs are arranged such that the thickness directions thereof are the same direction, in locations that have inner surfaces of the projecting tabs facing each other, and an interval between the inner surfaces is a second dimension greater than the first dimension.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: July 3, 2018
    Assignee: KITAGAWA INDUSTRIES, CO., LTD.
    Inventors: Tomohisa Kurita, Hideo Yumi
  • Patent number: 9991610
    Abstract: A pair of solder bonding portions to be solder-bonded onto the printed wiring board and a contact portion to contact the different conductive member or the like are coupled by a pair of flat spring portions. The respective flat spring portions protrude from side surfaces of mutually opposed corners of the contact portion. Sections following protruded sections of the respective flat spring portions are bent so as to wind in the same direction around a pillar-shaped space obtained by projecting the contact portion downward, and the flat spring portions reach the corresponding solder bonding portions. When the contact portion is pressed by the conductive member, the contact portion and the solder bonding portions remain parallel to each other, whereby the contact member can be successfully flattened toward the printed wiring board. At this point, outward deformation of the flat spring portions is inhibited.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 5, 2018
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita
  • Publication number: 20180076535
    Abstract: A pair of solder bonding portions to be solder-bonded onto the printed wiring board and a contact portion to contact the different conductive member or the like are coupled by a pair of flat spring portions. The respective flat spring portions protrude from side surfaces of mutually opposed corners of the contact portion. Sections following protruded sections of the respective flat spring portions are bent so as to wind in the same direction around a pillar-shaped space obtained by projecting the contact portion downward, and the flat spring portions reach the corresponding solder bonding portions. When the contact portion is pressed by the conductive member, the contact portion and the solder bonding portions remain parallel to each other, whereby the contact member can be successfully flattened toward the printed wiring board. At this point, outward deformation of the flat spring portions is inhibited.
    Type: Application
    Filed: June 8, 2016
    Publication date: March 15, 2018
    Inventor: Tomohisa KURITA
  • Patent number: 9787011
    Abstract: A contact member includes a base portion including a joint portion solderable to a first conductor; and an elastic contact portion formed continuously to the base portion and including a contact portion contactable with a second conductor. The base portion and the elastic contact portion form an integrated molded body include a metal thin plate having electrical conductivity and spring characteristic. The plate is a clad material including two or more metal layers stacked in a plate thickness direction of the plate, a first layer serving as one surface layer of the two or more stacked metal layers includes a metal member having a spring characteristic, and a second layer serving as another surface layer of the two or more stacked metal layers includes an aluminum member, the joint portion includes the first layer or the first layer that is plated, and the contact portion includes the second layer.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 10, 2017
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita
  • Publication number: 20170288329
    Abstract: A contact in one aspect of the present disclosure comprises a fixing portion, an elastic contact piece, and a pair of projecting tabs, which are formed as an integrated entity from a metal thin plate. The projecting tabs project from the fixing portion at positions on both sides of the elastic contact piece. A dimension of the elastic contact piece in a width direction, which matches the direction of an interval between the projecting tabs, is a first dimension. The projecting tabs are formed such that each projecting tab is a flat plate having the same thickness as the thin plate. The projecting tabs are arranged such that the thickness directions thereof are the same direction, in locations that have inner surfaces of the projecting tabs facing each other, and an interval between the inner surfaces is a second dimension greater than the first dimension.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Applicant: Kitagawa Industries Co., Ltd.
    Inventors: Tomohisa KURITA, Hideo YUMI
  • Patent number: 9655290
    Abstract: An electromagnetic shielding structure in one aspect of the present invention comprises one and more gripping members and a shielding case. The shielding case has a roof section and a plurality of side walls. The roof section comprises a polygonal panel that is shaped so as not to fit inside a 30 mm×30 mm square region. The side walls comprise panels that are provided so as to hang from portions corresponding to part or entirety of some of sides of the polygonal roof, and each side wall is configured to contact the gripping member at a position within a predetermined distance from an edge of that side wall in a direction perpendicular to both a thickness direction of that side wall and a thickness direction of a printed circuit board.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: May 16, 2017
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita
  • Patent number: 9570827
    Abstract: A contact member according to one aspect of the present disclosure comprises: a thin plate member having spring characteristics and electrical conductivity. The thin plate member comprises: a joint portion having a joint surface to be joined to a first member; a contact portion contactable with a second member; and a connecting portion having a length component in a direction intersecting the joint surface, and having a first end continuous to the joint portion and a second end continuous to the contact portion. The connecting portion comprises a narrow portion having a smaller dimension in a width direction than a dimension around the narrow portion.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 14, 2017
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventors: Tomohisa Kurita, Hideo Yumi
  • Patent number: 9549491
    Abstract: A conductive clip according to an aspect of the present invention includes a base portion and plural grip pieces. The plural grip pieces is configured to be able to grip a plate-like portion that is a part of a shield case. The grip piece includes a first portion, a second portion, a third portion, and a convex portion. In at least one press-contacted with the one surface of the plate-like portion and at least one press-contacted with the other surface of the plate-like portion among the plural grip pieces, the first portions and the second portions are provided to face each other with the position of the plate-like portion interposed therebetween, and the third portions are provided at positions where parts of distal end portions of the third portions in the extension direction do not overlap with each other when viewed from a direction perpendicular to the plate-like portion.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: January 17, 2017
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita
  • Patent number: 9472903
    Abstract: A grip member in one aspect of the present invention comprises a base portion and one or more pairs of grip portions. Of one and the other of the pair of grip portions, the one grip portion comprises a first spring portion and a second spring portion. The other grip portion comprises a third spring portion and a fourth spring portion. The second and fourth spring portions can grip the shield case by holding the shield case therebetween. The second and fourth spring portions are in contact with the shield case at different positions in regard to at least a direction orthogonal to the joint surface when the second and fourth spring portions grip the shield case.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: October 18, 2016
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita
  • Patent number: 9378854
    Abstract: A core catcher includes a holding surface that catches and holds corium and that introduces a surrounding coolant into the core catcher and cool the core catcher by heat exchange with the introduced coolant. The holding surface and the cooling unit are constructed by arranging blocks which each include a polyhedron having at least one pair of parallel surfaces and having an opening portion formed in a surface located in a lateral direction when a first surface that is one of the parallel surfaces is arranged as a bottom surface and are configured such that the polyhedrons communicate with each other via the opening portion when the polyhedrons are arranged adjacent in the lateral direction. The core catcher can achieve easier installation of the blocks without an increase in installation cost.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: June 28, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomohisa Kurita, Mika Tahara, Mitsuo Komuro, Noriyuki Katagiri, Masashi Tanabe
  • Publication number: 20160150685
    Abstract: An electromagnetic shielding structure in one aspect of the present invention comprises one and more gripping members and a shielding case. The shielding case has a roof section and a plurality of side walls. The roof section comprises a polygonal panel that is shaped so as not to fit inside a 30 mm×30 mm square region. The side walls comprise panels that are provided so as to hang from portions corresponding to part or entirety of some of sides of the polygonal roof, and each side wall is configured to contact the gripping member at a position within a predetermined distance from an edge of that side wall in a direction perpendicular to both a thickness direction of that side wall and a thickness direction of a printed circuit board.
    Type: Application
    Filed: July 1, 2014
    Publication date: May 26, 2016
    Inventor: Tomohisa KURITA
  • Publication number: 20160126653
    Abstract: A contact member according to one aspect of the present disclosure comprises: a thin plate member having spring characteristics and electrical conductivity. The thin plate member comprises: a joint portion having a joint surface to be joined to a first member; a contact portion contactable with a second member; and a connecting portion having a length component in a direction intersecting the joint surface, and having a first end continuous to the joint portion and a second end continuous to the contact portion. The connecting portion comprises a narrow portion having a smaller dimension in a width direction than a dimension around the narrow portion.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Applicant: KITAGAWA INDUSTRIES CO., LTD.
    Inventors: TOMOHISA KURITA, HIDEO YUMI
  • Publication number: 20160126652
    Abstract: A contact member includes a base portion including a joint portion solderable to a first conductor; and an elastic contact portion formed continuously to the base portion and including a contact portion contactable with a second conductor. The base portion and the elastic contact portion form an integrated molded body include a metal thin plate having electrical conductivity and spring characteristic. The plate is a clad material including two or more metal layers stacked in a plate thickness direction of the plate, a first layer serving as one surface layer of the two or more stacked metal layers includes a metal member having a spring characteristic, and a second layer serving as another surface layer of the two or more stacked metal layers includes an aluminum member, the joint portion includes the first layer or the first layer that is plated, and the contact portion includes the second layer.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Inventor: Tomohisa KURITA
  • Publication number: 20160099525
    Abstract: A grip member in one aspect of the present invention comprises a base portion and one or more pairs of grip portions. Of one and the other of the pair of grip portions, the one grip portion comprises a first spring portion and a second spring portion. The other grip portion comprises a third spring portion and a fourth spring portion. The second and fourth spring portions can grip the shield case by holding the shield case therebetween. The second and fourth spring portions are in contact with the shield case at different positions in regard to at least a direction orthogonal to the joint surface when the second and fourth spring portions grip the shield case.
    Type: Application
    Filed: March 20, 2014
    Publication date: April 7, 2016
    Applicant: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: TOMOHISA KURITA
  • Publication number: 20160081236
    Abstract: A conductive clip according to an aspect of the present invention includes a base portion and plural grip pieces. The plural grip pieces is configured to be able to grip a plate-like portion that is a part of a shield case. The grip piece includes a first portion, a second portion, a third portion, and a convex portion. In at least one press-contacted with the one surface of the plate-like portion and at least one press-contacted with the other surface of the plate-like portion among the plural grip pieces, the first portions and the second portions are provided to face each other with the position of the plate-like portion interposed therebetween, and the third portions are provided at positions where parts of distal end portions of the third portions in the extension direction do not overlap with each other when viewed from a direction perpendicular to the plate-like portion.
    Type: Application
    Filed: April 7, 2014
    Publication date: March 17, 2016
    Applicant: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa KURITA
  • Patent number: 9281591
    Abstract: A contact member has a first flat-plate portion, a pair of leg portions, a second flat-plate portion, and a projection portion. The pair of leg portions extends from opposite ends of the first flat-plate portion along a first orientation in a direction intersecting with the first flat-plate portion. The second flat-plate portion is connected to a projecting end of the leg portion. The projection portion extends from an end of the first flat-plate portion on a first direction side of a second orientation, which intersects with the first orientation, to the same direction as the direction where the leg portion extends. The projection portion is bent in a second direction of the second orientation to pass through the space between the pair of leg portions, thereby projecting in the second direction of the second orientation. The projection portion is provided with a protruding portion that expands along the first orientation.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: March 8, 2016
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventor: Tomohisa Kurita