Patents by Inventor Katsumori Matsushima

Katsumori Matsushima 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).

  • Tool breakdown detecting system
    Patent number: 4326257
    Abstract: A tool breakdown detecting system having at least one predicted standard pattern of change in the cutting resistance of a tool corresponding to a possible breakdown is prestored in a memory and compared with an actual change pattern of the cutting resistance of the tool monitored during working. When a coincidence is found between the prestored change pattern and the actual change pattern of the tool this indicates a breakdown of tool an alarm signal is generated. The alarm signal can activate a visual or audible alarm as well as regulate the further movement of the tool.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: April 20, 1982
    Assignee: Fujitsu Fanuc Ltd.
    Inventors: Toshio Sata, Katsumori Matsushima