Patents by Inventor Yukio Wakasa

Yukio Wakasa 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).

  • Weighing machine with weight detecting conveyor
    Patent number: 5308930
    Abstract: A weighing machine has a weighing conveyor with a conveyor belt supported by a load cell and uses a digital filter to eliminate high-frequency components of weight signals from the weighing conveyor. In order to improve accuracy of measurement, operating conditions of the digital filter are set with regard to the length of the object to be weighed. Alternatively, time required for the object to be completely on the conveyor belt may be calculated or the timing for the zero-point adjustment for the load cell may be adjusted accordingly.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: May 3, 1994
    Assignee: Ishida Scales Mfg. Co., Ltd.
    Inventors: Harunori Tokutu, Shoko Tajiiri, Yukio Wakasa
  • Weighing method and weighing apparatus
    Patent number: 5258579
    Abstract: In a weighing apparatus wherein a weighing belt conveyor (10) is supported on a weight detecting device, the present invention is characterized in that an aerodynamic force acting member (17) is provided so as to overlay at least an object (A) to be weighed so that an aerodynamic force such as a buoyance acting on the object (A) can be counterbalanced.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: November 2, 1993
    Assignee: Ishida Scales Mfg. Co., Ltd.
    Inventor: Yukio Wakasa