Patents Represented by Attorney, Agent or Law Firm Armstrong, Westerman & Westerman
  • Patent number: 6490310
    Abstract: A discharge electrode for a laser device allowing return plates to be easily attached/detached and a laser device with the discharge electrode are provided. To this end, structure in which a pair of an anode (5A) and a cathode (5B), provided facing each other inside a laser chamber (2) sealing in laser gases, for discharging electricity to excite the laser gases flowing through a space between them, thereby oscillating a laser beam, a conductive anode base (6) for holding the anode (5A), an insulating cathode base (8) for holding the cathode (5B), and a plurality of return plates (9B) for electrically connecting the anode base (6) and the laser chamber (2) and supplying an electric current to the anode (5A) are provided, and in which upper portions and lower portions of the return plates (9B) are connected respectively with an upper fixed plate (9A) and a lower fixed plate (9C), is given.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: December 3, 2002
    Assignee: Komatsu Ltd.
    Inventors: Takayuki Yabu, Takanobu Ishihara, Takashi Matsunaga, Yasufumi Kawasuji