Patents by Inventor Hiso Hojoh

Hiso Hojoh 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).

  • Quartz-type gas pressure gauge
    Patent number: 4741213
    Abstract: The present invention deals with a quartz-type gas pressure gauge which utilizes resonance of a quartz vibrator that changes depending upon the pressure, wherein the quartz vibrator is of the type of tuning fork obtained from a Z-plate of quartz crystal that is cut at an angle of greater than 1.degree.50' with respect to the Y-axis, in order to prevent the occurrence of erroneous measurement that will be caused by the change of ambient temperature particularly in low pressure regions.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: May 3, 1988
    Assignee: Seiko Instruments & Electronics Ltd.
    Inventor: Hiso Hojoh