Patents by Inventor Morio Onoue

Morio Onoue 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).

  • Piezoelectric crystal material and piezoelectric resonator
    Patent number: 6924588
    Abstract: In a gallium phosphate crystal, a crystallographic Y-axis and a Z-axis that have been rotated about an X-axis counterclockwise through an angle ? is referred to as a Y?-axis and a Z?-axis, respectively, where the angle ? is in a range from 10° to 20°. A piezoelectric crystal material made of gallium phosphate is provided as a plate-shaped member which is elongate in an X-axis direction and cut from the gallium phosphate crystal parallel to an X-Z? crystal plane of the gallium phosphate, and the plate-shaped member has sides parallel to an axis that is obtained by rotating the Y?-axis counterclockwise about the X-axis in an angular range from 1° to 3°.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: August 2, 2005
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Masanobu Okazaki, Morio Onoue, Hitoshi Sekimoto
  • Piezoelectric crystal material and piezoelectric resonator
    Publication number: 20040155305
    Abstract: In a gallium phosphate crystal, a crystallographic Y-axis and a Z-axis that have been rotated about an X-axis counterclockwise through an angle &agr; is referred to as a Y′-axis and a Z′-axis, respectively, where the angle &agr; is in a range from 10° to 20°. A piezoelectric crystal material made of gallium phosphate is provided as a plate-shaped member which is elongate in an X-axis direction and cut from the gallium phosphate crystal parallel to an X-Z′ crystal plane of the gallium phosphate, and the plate-shaped member has sides parallel to an axis that is obtained by rotating the Y′-axis counterclockwise about the X-axis in an angular range from 1° to 3°.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Applicant: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Masanobu Okazaki, Morio Onoue, Hitoshi Sekimoto