Patents by Inventor Nobuo Kiyama

Nobuo Kiyama 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).

  • Method and apparatus for machining the side edge surface of a web plate
    Patent number: 4799836
    Abstract: A side edge surface of a web plate is trimmed by or machined after feeding a milling cutter into the side edge surface of the web plate, which cutter has on its outer peripheral surface cutting edges at a predetermined angle with respect to its rotary axis, and driving the milling cutter in rotation. The rotary axis of the milling cutter is a plane which is kept parallel to a desired machined surface of the side edge surface of the web plate, and the angle formed between the cutting edge of the milling cutter and the side edge surface of the web plate is limited to within 55 degrees to 125 degrees.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: January 24, 1989
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Shingo Kurisu, Shunji Omori, Hiroyuki Takenaka, Tsuneo Egawa, Takuro Mitsunaga, Nobuo Kiyama
  • Method and apparatus for machining the side edge surface of a web plate
    Patent number: 4733998
    Abstract: A side edge surface of a web plate is trimmed or machined after by feeding a milling cutter into the side edge surface of the web plate, which cutter has on its outer peripheral surface cutting edges at a predetermined angle with respect to its rotary axis, and driving the milling cutter in rotation. The rotary axis of the milling cutter is inclined in a plane which is kept parallel to a desired machined surface of the side edge surface of the web plate, and the angle formed between the cutting edge of the milling cutter and the side edge surface of the web plate is limited to within 55 degrees to 125 degrees.
    Type: Grant
    Filed: August 22, 1984
    Date of Patent: March 29, 1988
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Shingo Kurisu, Shunji Omori, Hiroyuki Takenaka, Tsuneo Egawa, Takuro Mitsunaga, Nobuo Kiyama
  • Sheltering apparatus for use in long wall mining
    Patent number: 4189257
    Abstract: A sheltering apparatus for use in the long wall face of mine wherein a plurality of plates are arranged in overlapping manner between a self-advancing support and an adjacent plate, and hung from wires whose ends are fixed to the supports through springs, and an air curtain is fixed at the front open portion of the support, whereby floating dust and falling dusty materials can be repelled from entering the inner space of the supports.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: February 19, 1980
    Assignee: Taiheiyo Engineering Inc.
    Inventors: Shigeo Nakajima, Masao Tanaka, Ken Takahashi, Nobuo Kiyama, Takao Kanno
  • Self-advancing support for use in the pit of coal or metal mine
    Patent number: 4002037
    Abstract: A self-advancing support for use in the pit of coal or metal mine designed to support the pit roof after the mining operation by a shearer and having a mechanism for enabling the self-advancing support to be moved without using such means as a truck and a lift, said mechanism being housed within the self-advancing support and/or detached therefrom.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: January 11, 1977
    Assignee: Taiiheiyo Engineering Incorporated
    Inventors: Masao Hujimori, Shigeo Nakajima, Ken Takahashi, Tsunetoshi Ito, Toshio Shimada, Hajime Endo, Nobuo Kiyama