Patents by Inventor Harunori Tokutu

Harunori Tokutu 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).

  • Weight checker-sorter
    Patent number: 5383561
    Abstract: A weight checker-sorter successively weighs products each expected to contain a specified number of articles all weighing about the same, and uses a standard weight value to determine whether weighed products each contains the intended number of articles. Measured weights of products within a predefined range are stored. The standard weight value is updated frequently by averaging a specified plural number of most recently stored weights.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: January 24, 1995
    Assignee: Ishida Co., Ltd.
    Inventor: Harunori Tokutu
  • 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