Patents by Inventor Shota Iwakura

Shota Iwakura 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).

  • Elevator
    Publication number: 20040026177
    Abstract: An elevator is capable of transmitting signals between an elevator control unit and a car control unit without using tail cords. Resin-coated ropes for suspending an elevator car and a counterweight comprise conductive metal wires. Transmitter-receivers use the conductive metal wires of the ropes for contactless signal transmission. The conductive metal wires of the two ropes are connected in rope-anchoring parts to form an electrical closed loop for signal transmission.
    Type: Application
    Filed: February 6, 2003
    Publication date: February 12, 2004
    Inventors: Hideki Ayano, Hiromi Inaba, Ikuo Yamato, Shota Iwakura, Taichi Maeda, Akihiro Omiya, Shinichirou Kawano
  • Method and apparatus for forming a non-circular pipe
    Patent number: 5735156
    Abstract: A method of forming a non-circular pipe having a different sectional shape in the longitudinal direction thereof by bending a raw pipe while applying pressure to the inside of the raw pipe, wherein the circumference of a section of the raw pipe is substantially equalized to the circumference of a section, corresponding to the section of the raw pipe, of the non-circular pipe after formed.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: April 7, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Yuji Yoshitomi, Shinji Tanaka, Shota Iwakura, Takeshi Araya, Takamitsu Nakazaki, Norio Yokoba, Toshimi Sato
  • Method of relieving residual stress in metal pipe
    Patent number: 4730474
    Abstract: A method of relieving residual stress in a metal pipe comprises the steps of applying, by using a pressure medium, a low pressure to an interior of the metal pipe placed in dies, and applying, while preventing the buckling, an axial compression load to the pipe so as to effect a uniform plastic deformation of the entire metal pipe while maintaining the desired shape of the pipe, thereby relieving the residual stress in the metal pipe.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: March 15, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Shota Iwakura, Yuuji Yoshitomi, Takashi Naganawa, Toshio Saitoh, Tatsuo Seki