Patents by Inventor Yoshihiro Fukatsu

Yoshihiro 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).

  • Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker
    Patent number: 6765168
    Abstract: An electrode of a vacuum circuit breaker has a cup member and a contact. The cup member has an opening and a periphery which is formed with a slit so as to form a coil section. An electric current flows in the coil section so as to generate a longitudinal magnetic field in a direction along an axis of the cup member. The slit is bent and continuously extends on the periphery from a first end of the cup member to a second end of the cup member opposite to the first end of the cup member. The contact is shaped into a plate, and seals the opening of the cup member.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: July 20, 2004
    Assignee: Kabushiki Kaisha Meidensha
    Inventors: Hidemitsu Takebuchi, Yoshihiko Matsui, Akira Nishijima, Yoshihiro Fukatsu
  • Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker
    Publication number: 20020166841
    Abstract: An electrode of a vacuum circuit breaker has a cup member and a contact. The cup member has an opening and a periphery which is formed with a slit so as to form a coil section. An electric current flows in the coil section so as to generate a longitudinal magnetic field in a direction along an axis of the cup member. The slit is bent and continuously extends on the periphery from a first end of the cup member to a second end of the cup member opposite to the first end of the cup member. The contact is shaped into a plate, and seals the opening of the cup member.
    Type: Application
    Filed: February 27, 2002
    Publication date: November 14, 2002
    Applicant: KABUSHIKI KAISHA MEIDENSHA
    Inventors: Hidemitsu Takebuchi, Yoshihiko Matsui, Akira Nishijima, Yoshihiro Fukatsu