Patents by Inventor Masato Ikawa

Masato Ikawa 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).

  • Device for detecting cutting states in laser beam machining
    Patent number: 5155328
    Abstract: A device for detecting the state of cutting of metal sheet in laser beam machining. The device has a sensor head for catching and guiding light induced on a metal sheet in laser beam machining to a detecting section which includes an input amplifier, pierce finish detecting sections, an improper cutting detecting section, and a NC output section. The light is converted into electric signals and sent to all the detecting sections, whereby the signals are compared with reference values, and finish of piercing and improper cutting states such as gousing and burning are detected and as a result a pierce finish signal and an improper cutting signal are sent to a NC device of laser beam machinery by means of the NC output section to control machining.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: October 13, 1992
    Assignee: Amada Company, Limited
    Inventor: Masato Ikawa