Patents by Inventor Yuuki Kita

Yuuki Kita 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).

  • Machining fluid supply controlling system for a wire cut electrical discharge machine
    Patent number: 4857688
    Abstract: A wire cut electrical discharge machine (10) has two machining fluid supply systems respectively for supplying machining fluid is having different qualities to the machining section (14) thereof, namely, a rough-machining fluid supply system (20) and a finish-machining fluid supply system (60). The rough-machining fluid supply system (20) has a first machining fluid quality regulating circuit comprising a first machining fluid tank (26) having a filtering device (3) for filtering powdery chips, a specific resistance detector (34), a cooler or heater (42, 44), an ion exchange device (52) and pumps (40, 58), and the finish-machining fluid supply system (60) has a second machining fluid quality regulating circuit comprising a second machining fluid tank (66), a specific resistance detector (74), an ion exchange device (92), a cooler or heater (42, 44) and pumps (40, 98).
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: August 15, 1989
    Assignee: Fanuc Ltd.
    Inventors: Toshiyuki Aso, Yuuki Kita, Sadahiro Watanabe