Patents by Inventor Yujiro Dakeyo

Yujiro Dakeyo 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).

  • Mobile communication apparatus having a selecting plate mounted on circuit board
    Patent number: 6031731
    Abstract: A mobile cellular telephone 10 has a case 11 which is formed of frame portions 11a through 11f made of, for example, a reinforced plastic, a non-directional chip antenna 12, a circuit board 13 having the chip antenna 12 on one major surface (first major surface) 13a, and a copper-made reflective plate 14, which serves as means for attenuating a transmission output of the chip antenna 12. The reflecting plate 14 is provided between the circuit board 13 and the frame portion 14e in such a manner that it faces the first major surface 13a of the circuit board 13 with an intervening gap. Also, the reflecting plate 14 is connected to the ground pattern 19.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: February 29, 2000
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tsuyoshi Suesada, Yujiro Dakeyo, Seiji Kanba, Teruhisa Tsuru