Patents by Inventor Yoshitugu Tsuji

Yoshitugu Tsuji 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).

  • Arc-resistant terminal, arc-resistant terminal couple and connector or the like for automobile
    Patent number: 7163753
    Abstract: An arc-resistant terminal, couple, and connecter are provided. In an embodiment, a metal-based electrical contact portion thereof includes at least one of Cu, Ni or Sn, and not more than 0.06 mass % P, wherein the arc-resistant terminal capable of suppressing arc discharge wherein a voltage between the arc-resistant terminal and a second terminal immediately after separation thereof is DC36V to 60V and a current between terminals during contact is 6A to 30A. In another embodiment, the an electrical contact portion comprising at least 80 mass % of metal having a boiling point of not less than 1000 degrees centigrade. According to the present invention, since the electrical contact portion or the final contact portion of the terminal includes a specific metal-based material, even when the voltage applied between the terminals is increased and an arc discharge is liable to be generated, the arc discharge can be suppressed.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: January 16, 2007
    Assignees: Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Autonetworks Technologies, Ltd.
    Inventors: Kouji Ota, Hiroki Hirai, Yoshitugu Tsuji, Masahiro Shibata, Atsushi Kimura, Toshiaki Sakai, Satoshi Takano, Masahiko Kanda, Narito Yagi
  • Arc-resistant terminal, arc-resistant terminal couple and connector or the like for automobile
    Publication number: 20030194893
    Abstract: An arc-resistant terminal, couple, and connecter are provided. In an embodiment, a metal-based electrical contact portion thereof includes at least one of Cu, Ni or Sn, and not more than 0.06 mass % P, wherein the arc-resistant terminal capable of suppressing arc discharge wherein a voltage between the arc-resistant terminal and a second terminal immediately after separation thereof is DC36V to 60V and a current between terminals during contact is 6A to 30A. In another embodiment, the an electrical contact portion comprising at least 80 mass % of metal having a boiling point of not less than 1000 degrees centigrade. According to the present invention, since the electrical contact portion or the final contact portion of the terminal includes a specific metal-based material, even when the voltage applied between the terminals is increased and an arc discharge is liable to be generated, the arc discharge can be suppressed.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 16, 2003
    Applicants: Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Autonetworks Technologies, Ltd.
    Inventors: Kouji Ota, Hiroki Hirai, Yoshitugu Tsuji, Masahiro Shibata, Atsushi Kimura, Toshiaki Sakai, Satoshi Takano, Masahiko Kanda, Narito Yagi