Patents by Inventor Junichiro Kumagai

Junichiro Kumagai 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: 7727021
    Abstract: A connector has a plug connected to a first electric cable, and having a pin terminal and a plug holder, a socket connected to a second electric cable, and having a socket terminal and a socket holder, and a first tubular shield member and a second tubular shield member. The pin terminal of the plug is press-fitted and electrically connected to the socket terminal of the socket. The plug holder is connected to the socket holder. A first end of the first tubular shield member is electrically connected to a shield wire of the first electric cable. An elastic arm formed at an opening edge at a second end of the first tubular shield member is contacted to a conductive inner peripheral surface of the plug holder. A first end of the second tubular shield member is electrically connected to a shield wire of the second electric cable. An elastic arm of formed at an opening edge a second end of the second tubular shield member is contacted to a conductive inner peripheral surface of the socket holder.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: June 1, 2010
    Assignee: OMRON Corporation
    Inventors: Tomoyuki Haruna, Motoyuki Tomizu, Junichiro Kumagai, Kazuki Hayashi, Taijiro Fujiwara, Norihiro Otsu
  • Publication number: 20090269981
    Abstract: A connector has a plug connected to a first electric cable, and having a pin terminal and a plug holder, a socket connected to a second electric cable, and having a socket terminal and a socket holder, and a first tubular shield member and a second tubular shield member. The pin terminal of the plug is press-fitted and electrically connected to the socket terminal of the socket. The plug holder is connected to the socket holder. A first end of the first tubular shield member is electrically connected to a shield wire of the first electric cable. An elastic arm formed at an opening edge at a second end of the first tubular shield member is contacted to a conductive inner peripheral surface of the plug holder. A first end of the second tubular shield member is electrically connected to a shield wire of the second electric cable. An elastic arm of formed at an opening edge a second end of the second tubular shield member is contacted to a conductive inner peripheral surface of the socket holder.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 29, 2009
    Applicant: OMRON Corporation
    Inventors: Tomoyuki Haruna, Motoyuki Tomizu, Junichiro Kumagai, Kazuki Hayashi, Taijiro Fujiwara, Norihiro Otsu
  • Patent number: 7455547
    Abstract: A connector includes a base mounted with connecting terminals at a predetermined pitch and an operating lever turnably supported on the base. The operating lever presses and connects a tip end portion of a flexible printed circuit board against and to fixed contacts of the connecting terminals. Mounting protrusions provided to opposite end portions of the operating lever are moved along first slide faces, tapered faces, and second slide faces. The faces are formed in an uninterrupted manner on upper end faces of partition walls provided to opposite side end portions of the base. Turning shaft portions coaxially provided in an interrupted manner to remaining one side edge portion of the operating lever push up elastic finger portions of the connecting terminals. The turning shaft portions are turnably fitted in bearing recessed portions formed at the elastic finger portions.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: November 25, 2008
    Assignee: OMRON Corporation
    Inventors: Yoshinobu Hemmi, Junichiro Kumagai
  • Publication number: 20080081501
    Abstract: A connector includes a base mounted with connecting terminals at a predetermined pitch and an operating lever turnably supported on the base. The operating lever presses and connects a tip end portion of a flexible printed circuit board against and to fixed contacts of the connecting terminals. Mounting protrusions provided to opposite end portions of the operating lever are moved along first slide faces, tapered faces, and second slide faces. The faces are formed in an uninterrupted manner on upper end faces of partition walls provided to opposite side end portions of the base. Turning shaft portions coaxially provided in an interrupted manner to remaining one side edge portion of the operating lever push up elastic finger portions of the connecting terminals. The turning shaft portions are turnably fitted in bearing recessed portions formed at the elastic finger portions.
    Type: Application
    Filed: September 25, 2007
    Publication date: April 3, 2008
    Applicant: OMRON CORPORATION
    Inventors: Yoshinobu Hemmi, Junichiro Kumagai
  • Patent number: 6851967
    Abstract: In a wire connector, when a manipulation button 40 is pushed into a casing 10, a manipulation portion 43 of the manipulation button 40 pushes down one side of a leaf spring 30, whereas by pressing and locking an upper surface of the manipulation button 40 to a corner portion 11 of the casing 10 due to a reaction of the leaf spring 30. Accordingly, it is possible to provide the small wire connector which is simple in structure, high in reliability of contact, and easy in assembly and connecting operation.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: February 8, 2005
    Assignee: Omron Corporation
    Inventors: Kazuaki Miyoshi, Junichiro Kumagai, Hisakazu Yamada, Motoyuki Tomizu
  • Publication number: 20040102078
    Abstract: In a wire connector, when a manipulation button 40 is pushed into a casing 10, a manipulation portion 43 of the manipulation button 40 pushes down one side of a leaf spring 30, whereas by pressing and locking an upper surface of the manipulation button 40 to a corner portion 11 of the casing 10 due to a reaction of the leaf spring 30. Accordingly, it is possible to provide the small wire connector which is simple in structure, high in reliability of contact, and easy in assembly and connecting operation.
    Type: Application
    Filed: July 23, 2003
    Publication date: May 27, 2004
    Inventors: Kazuaki Miyoshi, Junichiro Kumagai, Hisakazu Yamada, Motoyuki Tomizu
  • Patent number: D506980
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: July 5, 2005
    Assignee: Omron Corporation
    Inventors: Junichiro Kumagai, Atsushi Yokoigawa