Patents by Inventor Keiichi Miyagawa

Keiichi Miyagawa 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).

  • Lathe and a machining system of a lathe
    Patent number: 6189427
    Abstract: A lathe each or lathes of a machining system comprises a head stock, which is transferred on a rail mechanism. The rail mechanism includes a vertically guiding rail which is mounted on a horizontally guiding rail. A turret has a turret support which has a pair of turret support attaching surfaces. The turret is attached with either of turret support attaching surfaces. A extruded horizontally guiding rail is located between both the bed bodies, each of which is included in each of the lathes. The extruded horizontally guiding rail is identical with a connecting guiding rail which connects the one horizontally guiding rail of the one lathe with the other horizontally guiding rail of the other lathe. A work stocking means is located between the bed bodies. A reversing means for reversing works is provided with the head stock.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: February 20, 2001
    Assignee: Hitachi Seiki Co., Ltd.
    Inventors: Akira Kosho, Satoru Togawa, Keiichi Miyagawa, Kazuhiko Oiwa
  • Lathe and a machining system of a lathe
    Patent number: 6021695
    Abstract: A lathe or each of lathes of a machining system comprises a head stock, which is transferred on a rail mechanism. The rail mechanism includes a vertically guiding rail which is mounted on a horizontally guiding rail. A turret has a turret support which has a pair of turret support attaching surfaces. The turret is attached with either of turret support attaching surfaces. A extruded horizontally guiding rail is located between both the bed bodies, each of which is included in each of the lathes. The extruded horizontally guiding rail is identical with a connecting guiding rail which connects the one horizontally guiding rail of the one lathe with the other horizontally guiding rail of the other lathe. A work stocking means is located between the bed bodies. A reversing means for reversing works is provided with the head stock.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: February 8, 2000
    Assignee: Hitachi Seiki Co., Ltd.
    Inventors: Akira Kosho, Satoru Togawa, Keiichi Miyagawa, Kazuhiko Oiwa