Patents by Inventor Juichiro Matsuzawa

Juichiro Matsuzawa 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 oscillator, manufacturing method therefor, mobile phone apparatus using piezoelectric oscillator, and electronic apparatus using piezoelectric oscillator
    Publication number: 20050012559
    Abstract: The invention provides a piezoelectric oscillator that allows for fine adjustment of the frequency after resin molding, a manufacturing method therefor, and a mobile phone and an electronic apparatus using the piezoelectric oscillator. The piezoelectric oscillator can include a resonator package, in which a piezoelectric resonator element is housed, and a semiconductor device, in which an oscillation circuit that is electrically connected to the resonator package is incorporated. The resonator package and the semiconductor device can be fixed to corresponding different surfaces of an island portion of a lead frame, and resin molding is performed so that a transparent lid of the resonator package is exposed to the outside.
    Type: Application
    Filed: June 14, 2004
    Publication date: January 20, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuhiko Shimodaira, Yugo Koyama, Juichiro Matsuzawa