Patents by Inventor Yoshio MITSUISHI

Yoshio MITSUISHI 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).

  • Analysis system and analysis method
    Patent number: 11443265
    Abstract: A cause of work loss in a factory that produces high-mix low-volume products is extracted. The analysis system includes: a calculation unit; a storage unit; and an input and output unit. The storage unit stores record information related to operation time of an activity for producing a product, and threshold information for determining whether the activity of producing the product is abnormal based on the operation time. The calculation unit is configured to determine the operation time and non-operation time for each case extracted from the record information, determine abnormality for each case based on the operation time for each case and the threshold information, and output information of comparing the operation time of a case determined to be abnormal with the operation time of a case not determined to be abnormal to the input and output unit.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: September 13, 2022
    Assignee: HITACHI, LTD.
    Inventors: Masataka Tanaka, Yoshio Mitsuishi, Fumiya Shimizu, Yuma Shiho, Naoaki Kawashima
  • ANALYSIS SYSTEM AND ANALYSIS METHOD
    Publication number: 20210150640
    Abstract: A cause of work loss in a factory that produces high-mix low-volume products is extracted. The analysis system includes: a calculation unit; a storage unit; and an input and output unit. The storage unit stores record information related to operation time of an activity for producing a product, and threshold information for determining whether the activity of producing the product is abnormal based on the operation time. The calculation unit is configured to determine the operation time and non-operation time for each case extracted from the record information, determine abnormality for each case based on the operation time for each case and the threshold information, and output information of comparing the operation time of a case determined to be abnormal with the operation time of a case not determined to be abnormal to the input and output unit.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 20, 2021
    Inventors: Masataka TANAKA, Yoshio MITSUISHI, Fumiya SHIMIZU, Yuma SHIHO, Naoaki KAWASHIMA