Patents by Inventor Kazuhisa Tsunematsu

Kazuhisa Tsunematsu 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: 6893288
    Abstract: An electrical connector for a flat cable (C) comprises a housing (1) having an open mouth (14), a plurality of terminals (2) arranged and maintained in the housing, each terminal having a contact section (12) at a position facing the open mouth of the housing and a bearing section (4) at a position corresponding to and opposed to the contact section with respect to the flat cable, and a pressure member (15) rotatable between an open position and a closed position. The pressure member includes a plurality of grooves for receiving ends of the terminals and at least one pressure section provided between the grooves for pressing the flat cable to the contact sections at the closed position.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: May 17, 2005
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Kazuhisa Tsunematsu
  • Patent number: 6851968
    Abstract: An electrical connector for a flat type conductor comprises terminals (20) with contact portion brought into contact with the flat conductor (F) when the flat conductor moves to the the closed position, and a pressing member (40) rotatable between the open and closed positions, wherein each terminal includes a base (21) and a main arm (22) having a first arm portion (24) and a second arm portion (25), at least one of the first and second arm portions having a sub-arm portion (27 and 33). When the pressure member is moved to the closed position, the sub-arm portion is resiliently deformed about a joint portion between the sub-arm portion and the main arm so that a distal end of said sub-arm portion presses the flat type conductor.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: February 8, 2005
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Kazuhisa Tsunematsu
  • Publication number: 20040171293
    Abstract: An electrical connector for a flat cable (C) comprises a housing (1) having an open mouth (14), a plurality of terminals (2) arranged and maintained at the housing and having contact sections (12) at positions facing to the open mouth of the housing, a pressure member (15) rotatable around a rotational axis (18A) and between an open position where the flat cable is inserted from the open mouth into an insertion space and arranged on the contact sections and a closed position where the flat cable is pressed towards the contact sections. The connector also comprises at least one bearing section (4) provided in the terminal for rotation of the pressure member at the rotational axis and at least one engaging section (10 and 17A) provided in the terminal and the pressure member and holding the pressure member at the open position by an engaging force generated by concerted movement of the terminals and the pressure member.
    Type: Application
    Filed: November 6, 2003
    Publication date: September 2, 2004
    Inventor: Kazuhisa Tsunematsu
  • Patent number: 6767233
    Abstract: An electrical connector for a flat cable (C) comprises a housing (1) having an open mouth (14), a plurality of terminals (2) arranged and maintained at the housing and having contact sections (12) at positions facing to the open mouth of the housing, a pressure member (15) rotatable around a rotational axis (18A) and between an open position where the flat cable is inserted from the open mouth into an insertion space and arranged on the contact sections and a closed position where the flat cable is pressed towards the contact sections. The connector also comprises at least one bearing section (4) provided in the terminal for rotation of the pressure member at the rotational axis and at least one engaging section (10 and 17A) provided in the terminal and the pressure member and holding the pressure member at the open position by an engaging force generated by concerted movement of the terminals and the pressure member.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 27, 2004
    Assignee: Hirose Electric, Co., Ltd.
    Inventor: Kazuhisa Tsunematsu
  • Patent number: 6711816
    Abstract: A method for manufacturing an electrical connector for a flat cable, wherein the connector has at least one terminal (2) inserted into a receiving slot (3) of a box-shaped housing (1) from a side of the housing and having upper and lower arms (4 and 5), comprises the step of inserting the terminal into the receiving slot in a manner that the upper arm and lower arms are guided by inner surfaces of upper and lower walls of the housing, respectively, while the lower arm is deflected toward the upper arm and then deflected back to its original shape at a time of insertion to a predetermined position.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: March 30, 2004
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Kazuhisa Tsunematsu
  • Publication number: 20040002254
    Abstract: An electrical connector for a flat type conductor comprises terminals (20) with contact portion brought into contact with the flat conductor (F) when the flat conductor moves to the the closed position, and a pressing member (40) rotatable between the open and closed positions, wherein each terminal includes a base (21) and a main arm (22) having a first arm portion (24) and a second arm portion (25), at least one of the first and second arm portions having a sub-arm portion (27 and 33). When the pressure member is moved to the closed position, the sub-arm portion is resiliently deformed about a joint portion between the sub-arm portion and the main arm so that a distal end of said sub-arm portion presses the flat type conductor.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 1, 2004
    Inventor: Kazuhisa Tsunematsu
  • Patent number: 6666711
    Abstract: An electrical connector has a plurality of sheet-type terminals (20 and 30) which are received into corresponding receiving slots (11 and 12) of a housing (10) and are arranged parallel each other in a direction. The terminals (20, 30) have connection sections (23 and 33) at their ends, which are arranged so as to face the same side and protrude outward from a bottom surface of the housing. The movable member (40), which presses a flat cable (C) toward contact sections (26, 36), is movably supported at an open mouth of the housing (10). The connection sections (23 and 33) have connection surfaces (23A and 33A) for contact with circuit sections of a circuit board, which are staggered in a receiving direction of the terminals to the housing.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: December 23, 2003
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Yoshinori Takashita, Mitsuo Ishida, Kazuhisa Tsunematsu
  • Publication number: 20030217464
    Abstract: A method for manufacturing an electrical connector for a flat cable, wherein the connector has at least one terminal (2) inserted into a receiving slot (3) of a box-shaped housing (1) from a side of the housing and having upper and lower arms (4 and 5), comprises the step of inserting the terminal into the receiving slot in a manner that the upper arm and lower arms are guided by inner surfaces of upper and lower walls of the housing, respectively, while the lower arm is deflected toward the upper arm and then deflected back to its original shape at a time of insertion to a predetermined position.
    Type: Application
    Filed: May 27, 2003
    Publication date: November 27, 2003
    Inventor: Kazuhisa Tsunematsu
  • Patent number: 6602083
    Abstract: In an electrical connector for a flat cable, a pressure member (15) can freely rotate between an open position to open an inserting space to enable the insertion of the flat cable (C) into an open mouth and a close position to press the flat cable to contact section (12) closing the inserting space. A part of an upper wall (7) of a housing (1) has a opening which is open towards the open mouth (14). The pressure member (15) can move into the opening when it turns over to the open position, and is supported by a bearing section (11) at a support member held in the housing so as to freely rotate. The upper edge (9A) of the bearing section of the support member is positioned outer than the inner surface of the upper wall of the housing.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: August 5, 2003
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Kazuhisa Tsunematsu
  • Publication number: 20020151211
    Abstract: An electrical connector has a plurality of sheet-type terminals (20 and 30) which are received into corresponding receiving slots (11 and 12) of a housing (10) and are arranged parallel each other in a direction. The terminals (20, 30) have connection sections (23 and 33) at their ends, which are arranged so as to face the same side and protrude outward from a bottom surface of the housing. The movable member (40), which presses a flat cable (C) toward contact sections (26, 36), is movably supported at an open mouth of the housing (10). The connection sections (23 and 33) have connection surfaces (23A and 33A) for contact with circuit sections of a circuit board, which are staggered in a receiving direction of the terminals to the housing.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 17, 2002
    Inventors: Yoshinori Takashita, Mitsuo Ishida, Kazuhisa Tsunematsu
  • Publication number: 20020137384
    Abstract: In an electrical connector for a flat cable, a pressure member (15) can freely rotate between an open position to open an inserting space to enable the insertion of the flat cable (C) into an open mouth and a close position to press the flat cable to contact section (12) closing the inserting space. A part of an upper wall (7) of a housing (1) has a opening which is open towards the open mouth (14). The pressure member (15) can move into the opening when it turns over to the open position, and is supported by a bearing section (11) at a support member held in the housing so as to freely rotate. The upper edge (9A) of the bearing section of the support member is positioned outer than the inner surface of the upper wall of the housing.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 26, 2002
    Inventor: Kazuhisa Tsunematsu
  • Publication number: 20020137383
    Abstract: An electrical connector for a flat cable (C) comprises a housing (1) having an open mouth (14), a plurality of terminals (2) arranged and maintained at the housing and having contact sections (12) at positions facing to the open mouth of the housing, a pressure member (15) rotatable around a rotational axis (18A) and between an open position where the flat cable is inserted from the open mouth into an insertion space and arranged on the contact sections and a closed position where the flat cable is pressed towards the contact sections. The connector also comprises at least one bearing section (4) provided in the terminal for rotation of the pressure member at the rotational axis and at least one engaging section (10 and 17A) provided in the terminal and the pressure member and holding the pressure member at the open position by an engaging force generated by concerted movement of the terminals and the pressure member.
    Type: Application
    Filed: February 28, 2002
    Publication date: September 26, 2002
    Inventor: Kazuhisa Tsunematsu
  • Patent number: 5977497
    Abstract: A switch device comprises an insulative housing and a pair of switch terminals each having an outside connection section and an inside section in the housing. The first switch terminal 5 has a plurality of flexible arms 8A, 8B with a free end. Each flexible arm has a movable contact point so that when the flexible arms receive pressure, they are flexed to bring the respective movable contact points into contact with the fixed contact 14 of the second switch terminal 6, thus providing a reliable switching mechanism.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: November 2, 1999
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Kazuhisa Tsunematsu