Patents Assigned to OI Denki Co., Ltd.
  • Patent number: 6329903
    Abstract: A wrist watch-style pager prevents connection failure and/or breakdown due to attachment/detachment of a loop antenna and has a receivable frequency band which is not affected by the thickness of the wearer's arm. A U-shaped antenna structure is mounted inside a wrist band part which is part of the wrist band divided at the center fastening structure. The U-shaped structure functions as an independent antenna on at least one part of the wrist band. The antenna is buried in the wrist band part so that the two ends of its U-shaped structure face toward a page mainbody. When each of two contact pins on the ends of the U-shaped structure connect the wrist band with the pager mainbody, a terminal spring on a reception circuit substrate of the pager mainbody is pressed. This causes the receiving signal from the antenna to be conveyed to the page mainbody.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: December 11, 2001
    Assignee: OI Denki Co., Ltd.
    Inventor: Takeshi Yamamori
  • Patent number: 5986566
    Abstract: A wrist band antenna prevents connection failure and/or breakdown due to attachment/detachment of a loop antenna and has a receivable frequency band which is not affected by the thickness of the wearer's arm. A U-shaped antenna structure is mounted inside a wrist band part which is part of the wrist band divided at the center fastening structure. The U-shaped structure functions as an independent antenna on at least one part of the wrist band. The antenna is buried in the wrist band part so that the two ends of its U-shaped structure face toward a receiver main body. When each of two contact pins on the ends of the U-shaped structure connect the wrist band with the receiver main body, a terminal spring on a reception circuit substrate of the receiver main body is pressed. This causes the receiving signal from the antenna to be conveyed to the receiver main body.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: November 16, 1999
    Assignee: Oi Denki Co., Ltd.
    Inventor: Takeshi Yamamori
  • Patent number: 5613236
    Abstract: A clip holder for holding a portable receiver having a front panel, back panel, sides, and a display on the front panel. The clip holder has two members, a receiver holder and a clip plate. The receiver holder and clip plate are attached to opposite ends of a pivot disposed within a cam. The clip plate and receiver holder may be maintained in any position about the pivot because the cam is friction engaged with the receiver holder in all positions. The receiver is engaged to an outer surface of the receiver holder. The clip holder may be attached to a user's belt or waist garment when the belt or garment is located between the clip plate and receiver holder. The clip holder is secured to the user's waist when the receiver holder is fully rotated toward the clip plate so the clip plate and receiver are in a substantially parallel orientation.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: March 18, 1997
    Assignee: Oi Denki Co., Ltd.
    Inventors: Kazuaki Tajima, Masahiro Kikuchi