Patents by Inventor Shigeru Mitsuzuka

Shigeru Mitsuzuka 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: 9281594
    Abstract: A connector comprising a first connector provided with first terminals each of which has a movable portion formed so that a dimension in its width direction is larger than a dimension in its thickness direction to be elastically deformed in a fore-and-aft direction (Y direction) of the connector, and a second connector provided with second terminals each of which has a movable portion formed so that a dimension in its thickness direction is larger than a dimension in its width direction to be elastically deformed in a width direction (X direction) of the connector. As compared with a terminal formed so as to be sufficiently elastically deformable in both of the fore-and-aft direction and the width direction of the connector, it is possible to increase a cross-sectional area of each of the movable portions, so that a permissible value of current of each of the terminals can be increased.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: March 8, 2016
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Daisuke Funayama, Shigeru Mitsuzuka, Tomisaburo Yamaguchi
  • Patent number: 9209557
    Abstract: A socket terminal includes a front connection portion that comes into contact with a plug terminal, in which a recess having an inner wall is formed in a contact surface that comes into contact with the front connection portion. The front connection portion is locked on the inner wall by coming into contact with the inner wall when moving in a direction in which the plug terminal is pulled out from the socket terminal. The front connection portion also includes a contact edge that wipes impurities off the contact surface. An electrical connection between the socket terminal and the plug terminal can be maintained by locking the socket terminal on the inner wall even with an application of vibrations in directions in which the plug terminal is inserted and pulled out. Since the contact edge can remove the impurities, the electrical connection between the terminals can be stabilized.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 8, 2015
    Assignee: Iriso Electronics Co., Ltd.
    Inventors: Hiroaki Kobayashi, Hidehiro Shindo, Shigeru Mitsuzuka
  • Patent number: 9178326
    Abstract: The movable portion of the first terminal of the first connector is formed to be larger in the width direction than in the thickness direction, so as to be elastically deformed in the front-back direction of the connector, and the movable portion of the second terminal of the second connector is formed to be larger in the thickness direction than in the width direction, so as to be elastically deformed in the width direction of the connector. Therefore, the movable portions can be formed with an increased cross-sectional area, thereby enabling the allowable current of the terminals to be increased, unlike a configuration in which the movable portion is elastically deformable to a sufficient extent both in the front-back direction and in the width direction of the connector.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: November 3, 2015
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Daisuke Funayama, Shigeru Mitsuzuka, Tomisaburo Yamaguchi
  • Publication number: 20150244093
    Abstract: A connector comprising a first connector provided with first terminals each of which has a movable portion formed so that a dimension in its width direction is larger than a dimension in its thickness direction to be elastically deformed in a fore-and-aft direction (Y direction) of the connector, and a second connector provided with second terminals each of which has a movable portion formed so that a dimension in its thickness direction is larger than a dimension in its width direction to be elastically deformed in a width direction (X direction) of the connector. As compared with a terminal formed so as to be sufficiently elastically deformable in both of the fore-and-aft direction and the width direction of the connector, it is possible to increase a cross-sectional area of each of the movable portions, so that a permissible value of current of each of the terminals can be increased.
    Type: Application
    Filed: August 26, 2013
    Publication date: August 27, 2015
    Inventors: Daisuke Funayama, Shigeru Mitsuzuka, Tomisaburo Yamaguchi
  • Patent number: 9088113
    Abstract: A second elastic portion includes a bent section connected via the proximal end portion to a first fixing portion formed so as to circumvent along a shape of a distal end portion and a part of a lateral face of a projecting portion of a first movable housing.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 21, 2015
    Assignee: IRISO ELECTRONICS CO., LTD.
    Inventors: Daisuke Funayama, Shigeru Mitsuzuka, Tomisaburo Yamaguchi
  • Publication number: 20150064935
    Abstract: The movable portion of the first terminal of the first connector is formed to be larger in the width direction than in the thickness direction, so as to be elastically deformed in the front-back direction of the connector, and the movable portion of the second terminal of the second connector is formed to be larger in the thickness direction than in the width direction, so as to be elastically deformed in the width direction of the connector. Therefore, the movable portions can be formed with an increased cross-sectional area, thereby enabling the allowable current of the terminals to be increased, unlike a configuration in which the movable portion is elastically deformable to a sufficient extent both in the front-back direction and in the width direction of the connector.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Daisuke Funayama, Shigeru Mitsuzuka, Tomisaburo Yamaguchi
  • Publication number: 20150064975
    Abstract: A second elastic portion includes a bent section connected via the proximal end portion to a first fixing portion formed so as to circumvent along a shape of a distal end portion and a part of a lateral face of a projecting portion of a first movable housing.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Daisuke Funayama, Shigeru Mitsuzuka, Tomisaburo Yamaguchi
  • Publication number: 20150024620
    Abstract: A socket terminal includes a front connection portion that comes into contact with a plug terminal, in which a recess having an inner wall is formed in a contact surface that comes into contact with the front connection portion. The front connection portion is locked on the inner wall by coming into contact with the inner wall when moving in a direction in which the plug terminal is pulled out from the socket terminal. The front connection portion also includes a contact edge that wipes impurities off the contact surface. An electrical connection between the socket terminal and the plug terminal can be maintained by locking the socket terminal on the inner wall even with an application of vibrations in directions in which the plug terminal is inserted and pulled out. Since the contact edge can remove the impurities, the electrical connection between the terminals can be stabilized.
    Type: Application
    Filed: June 17, 2014
    Publication date: January 22, 2015
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Hiroaki Kobayashi, Hidehiro Shindo, Shigeru Mitsuzuka
  • Publication number: 20120164893
    Abstract: When a male side contact is inserted into a female side contact, female side contact portions in the female side contact press a plurality of male side contact portions in the male side contact, and each of the male side contact portions is displaced in a thickness direction of the male side contact while contacting the female side contact portions so that a contact area between the contacts can be sufficiently ensured. When the contacts are connected to each other, a feeling of the female side contact portions, together with each of the male side contact portions, being displaced in the thickness direction of the male side contact can be obtained. Further, the contacts engage with each other by the displacement of each of the contact portions so that movement of the male side contact in a direction opposite to its insertion direction can be regulated.
    Type: Application
    Filed: July 6, 2009
    Publication date: June 28, 2012
    Applicant: IRISO ELECTRONICS CO., LTD.
    Inventors: Shigeru Mitsuzuka, Toru Takane
  • Publication number: 20090023324
    Abstract: The object of the present invention is to provide a locking structure of a flexible board, which combines a reliable locking of and a smooth removal of the flexible board inserted to the Non-ZIF type connector, does not widen the width of the flexible board, and thereby does not increase the occupied mounting area of the connector, and furthermore does not compromise one-action insertion and removal.
    Type: Application
    Filed: April 13, 2006
    Publication date: January 22, 2009
    Applicant: TAIKO DENKI CO., LTD.
    Inventors: Masakazu Koike, Masato Takai, Ken Minagawa, Shigeru Mitsuzuka