Patents by Inventor Yukihiro Fukatsu

Yukihiro Fukatsu 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: 6290554
    Abstract: A female terminal fitting is provided to prevent a waterproof rubber plug from being damaged. The female terminal fitting has an opening 21 formed in the leading end of a box-shaped main portion 20 having angular portions at its four corners. Side wall extending pieces 40 and an upper wall extending piece 44 extending forward from side walls 26 and a ceiling plate 32a are turned inside at the opening 21. Thus rounded side edges 42 and an upper edge of the opening 21 are formed by the turned portions of the extending pieces 40, 44. Since the extending pieces 40, 44 are turned not at their bottom ends, but at their intermediate positions, four corner portions 43 at the leading ends of the angular portions 28 are retracted.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 18, 2001
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yasumitsu Makita, Yukihiro Fukatsu
  • Patent number: 6290521
    Abstract: A connector for electrical terminals includes a housing that has a plurality of cavities, a plurality of respective resiliently deformable locking members, and a plurality of respective terminals. Each terminal is inserted in a respective cavity and has (a) a partially inserted position in which the terminal bears on the respective locking member to deform the locking member so that the locking member is raised with respect to a peripheral surface of the housing, and (b) a fully inserted position in which the locking member snap-fits to the terminal thereby locking the terminal in said cavity. The connector further includes a bus bar holder having a sleeve which accommodates a plurality of bus bar tab pieces. The sleeve is push-fitted over the peripheral surface of the housing to install the bus bar holder to the housing and to contact the tab pieces to the terminals, whereby the terminals are electrically connected to each other.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: September 18, 2001
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Izumi Suzuki, Yukihiro Fukatsu, Kiyofumi Ichida
  • Patent number: 6287157
    Abstract: A connector assembly is disclosed, including a terminal. The terminal has a connection portion which in use contacts a mating terminal. An electrical wire connection portion connected to an electrical wire is provided rearward from the connection portion. The height of the connection portion is greater than that of the wire connection portion. A guard member projects from each of two side walls located between the connection portion and the wire connection portion. When an electrically conductive plate material is cut and bent to form the terminal, each guard member is formed integral with the respective side wall, and a tip of each guard member is folded inward to prevent a sharp edge from being exposed to the outside. A periphery of a terminal insertion opening in a resilient sealing member of the connector housing is prevented from being damaged when pressing the terminal into a terminal insertion opening of the resilient sealing member or when removing it therefrom.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 11, 2001
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Izumi Suzuki, Yukihiro Fukatsu
  • Patent number: 6193549
    Abstract: A waterproof connector for electrical terminals has a housing containing cavities for the electrical terminals arranged in upper and lower rows. Bus bar units are fitted in the rows of cavities respectively to connect the electrical terminals in a predetermined pattern. A sealing member is installed on a rear end of the connector housing and held by a seal holder. The electrical wires connected with the electrical terminals are sealed against the sealing member. A closed end cap is installed on the connector housing from the front end and a lip portion on the peripheral edge of the sealing member seals against the inner peripheral surface of the cap. To permit discrimination of the orientation of the connector, the seal holder may have an asymmetrical shape.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: February 27, 2001
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Izumi Suzuki, Yukihiro Fukatsu, Kiyofumi Ichida
  • Patent number: 6186806
    Abstract: A connector includes a housing having a plurality of cavities, a plurality of resiliently deformable locking members, and a plurality of terminals. Each terminal is inserted in the respective cavity and has (a) a partially inserted position in which the terminal bears on the respective locking member to deform the locking member so that the locking member is elevated with respect to a peripheral surface of the housing, and (b) a fully inserted position in which the locking member snap-fits to the terminal thereby locking the terminal in the cavity. The connector further includes a bus bar holder having a sleeve and a plurality of bus bar tab pieces which are accommodated in the sleeve. The sleeve is push-fitted over the peripheral surface of the housing via a partially installed position, at which the tab pieces do not contact said terminals, to a fully installed position, at which the tab pieces contact said terminals.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: February 13, 2001
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Izumi Suzuki, Yukihiro Fukatsu