Patents by Inventor Katsuhisa Serizawa

Katsuhisa Serizawa 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: 10424880
    Abstract: A shield connector is formed such that an electrical wire shield portion at an end of an electrical shield wire is removed to expose a plurality of single shield wires; connection terminals are each connected to the conductor at an end of each exposed single shield wire; the connection terminals are held in an inner housing; the inner housing and the single shield wires are sheathed with a shield shell; and an attachment piece integrated with the shield shell is fixedly attached to an end of the electrical shield wire. The shield shell is provided with a connector shield member, and the connector shield member is electrically connected to single wire shield portions of the exposed single shield wires.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: September 24, 2019
    Assignee: SMK Corporation
    Inventors: Yasuo Yoshiura, Katsuhisa Serizawa
  • Publication number: 20190089099
    Abstract: A shield connector is formed such that an electrical wire shield portion at an end of an electrical shield wire is removed to expose a plurality of single shield wires; connection terminals are each connected to the conductor at an end of each exposed single shield wire; the connection terminals are held in an inner housing; the inner housing and the single shield wires are sheathed with a shield shell; and an attachment piece integrated with the shield shell is fixedly attached to an end of the electrical shield wire. The shield shell is provided with a connector shield member, and the connector shield member is electrically connected to single wire shield portions of the exposed single shield wires.
    Type: Application
    Filed: June 19, 2018
    Publication date: March 21, 2019
    Inventors: Yasuo YOSHIURA, Katsuhisa SERIZAWA
  • Patent number: 9692151
    Abstract: Provided is a switch attached coaxial connector that improves an isolation characteristic between a common terminal and a closed terminal. In a normal state where a coaxial plug is not connected to the switch attached coaxial connector, a movable contact portion biased by a leaf spring piece portion elastically contacts a fixed contact piece portion so that a closed terminal and a common terminal are electrically connected to each other. When the coaxial plug is connected to the switch attached coaxial connector, the movable contact portion moves rearward from the fixed contact piece portion by the plug pin abutting against a plug contact portion so that the contact with respect to the fixed contact piece portion is disconnected and the electrical connection of the common terminal is switched from the closed terminal to the plug pin.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 27, 2017
    Assignee: SMK Corporation
    Inventors: Hironori Kunieda, Katsuhisa Serizawa
  • Publication number: 20140315427
    Abstract: Provided is a switch attached coaxial connector that improves an isolation characteristic between a common terminal and a closed terminal. In a normal state where a coaxial plug is not connected to the switch attached coaxial connector, a movable contact portion biased by a leaf spring piece portion elastically contacts a fixed contact piece portion so that a closed terminal and a common terminal are electrically connected to each other. When the coaxial plug is connected to the switch attached coaxial connector, the movable contact portion moves rearward from the fixed contact piece portion by the plug pin abutting against a plug contact portion so that the contact with respect to the fixed contact piece portion is disconnected and the electrical connection of the common terminal is switched from the closed terminal to the plug pin.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 23, 2014
    Applicant: SMK CORPORATION
    Inventors: Hironori Kunieda, Katsuhisa Serizawa
  • Patent number: D400170
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: October 27, 1998
    Assignee: SMK Corporation
    Inventors: Kiyoshi Asai, Katsuhisa Serizawa, Yoshiyuki Kaku