Patents by Inventor Hidefumi Omatsu

Hidefumi Omatsu 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).

  • Laser oscillator and laser machining apparatus
    Patent number: 9379511
    Abstract: A laser oscillator includes a blower for blowing laser gas to discharge tubes; a gas circulation path for connecting discharge tubes and a blower; a gear chamber pressure detector for detecting the pressure of the gear chamber disposed in the blower; and an alarm part for issuing an alarm when the pressure detected in the gear chamber pressure detector is higher than a predetermined pressure. The predetermined pressure is set based on the average value of the pressure on the laser gas inlet side and the pressure on the laser gas outlet side of the blower. This configuration can prevent the entry of the oil mist generated from the blower into the gas circulation path and an increase in the gas consumption, while maintaining stable laser output for an extended period of time without increasing the running cost.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: June 28, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Satoshi Eguchi, Hidefumi Omatsu, Hiroyuki Hayashikawa
  • LASER OSCILLATOR AND LASER MACHINING APPARATUS
    Publication number: 20120006798
    Abstract: A laser oscillator includes a blower for blowing laser gas to discharge tubes; a gas circulation path for connecting discharge tubes and a blower; a gear chamber pressure detector for detecting the pressure of the gear chamber disposed in the blower; and an alarm part for issuing an alarm when the pressure detected in the gear chamber pressure detector is higher than a predetermined pressure. The predetermined pressure is set based on the average value of the pressure on the laser gas inlet side and the pressure on the laser gas outlet side of the blower. This configuration can prevent the entry of the oil mist generated from the blower into the gas circulation path and an increase in the gas consumption, while maintaining stable laser output for an extended period of time without increasing the running cost.
    Type: Application
    Filed: March 8, 2010
    Publication date: January 12, 2012
    Applicant: Panasonic Corporation
    Inventors: Satoshi Eguchi, Hidefumi Omatsu, Hiroyuki Hayashikawa