Patents by Inventor Iki Harada

Iki Harada 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).

  • Publication number: 20060061011
    Abstract: A carbon nanotube orientated composite formed by orientating carbon nanotubes in a given direction in a matrix having a heat conductivity lower than that of carbon nanotube, in which at least a part of carbon nanotubes are contacted with each other to be continuous from one end to the other end between both ends in the orientated direction, is provided as a material having a heat conductivity considerably higher than that of copper, aluminum or the like or a material to be disposed in rubber material having a low heat releasing characteristic to considerably improve the heat conduction, and also there are provided a method of producing the same as well as a pneumatic tire, a wheel for a vehicle, a tire-wheel assembly and a disc brake using this material.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 23, 2006
    Inventors: Masami Kikuchi, Iki Harada, Keiichiro Mizuno, Itsuo Tanuma, Masao Ogawa, Satoshi Aizawa, Yukio Aoike, Takahisa Shizuku
  • Patent number: 5884440
    Abstract: A seismic isolation apparatus which has a composite multilayered member comprising a plurality of hard plates having rigidity and a plurality of soft plates having viscoelastic property which are arranged to form alternating layers between an upper flange and a lower flange; and satisfies the condition that the proper vibration to the horizontal direction of the seismic isolation apparatus which is represented by f.sub.H and obtained by the equation ##EQU1## wherein K.sub.H represents a spring constant of the seismic isolation apparatus to the horizontal direction, M represents mass of a structure mounted on the seismic isolation apparatus, and f.sub.H has a value in the range of: 0.1 Hz.ltoreq.f.sub.H .ltoreq.2 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is 2 mm or less, 0.1 Hz.ltoreq.f.sub.H .ltoreq.0.8 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is equal to 100% shearing strain, and 0.9 Hz.ltoreq.f.sub.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: March 23, 1999
    Assignee: Bridgestone Corporation
    Inventors: Takaharu Kubo, Isao Hagiwara, Yoshihide Fukahori, Iki Harada
  • Patent number: 5765322
    Abstract: A seismic isolation apparatus which has a composite multilayered member comprising a plurality of hard plates having rigidity and a plurality of soft plates having viscoelastic property which are arranged to form alternating layers between an upper flange and a lower flange; and satisfies the condition that the proper vibration to the horizontal direction of the seismic isolation apparatus which is represented by f.sub.H and obtained by the equation f.sub.H =1/2p.sqroot.K.sub.H M wherein K.sub.H represents a spring constant of the seismic isolation apparatus to the horizontal direction, M represents mass of a structure mounted on the seismic isolation apparatus, and f.sub.H has a value in the range of: 0.1 Hz.ltoreq.f.sub.H .ltoreq.2 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is 2 mm or less, 0.1 Hz.ltoreq.f.sub.H .ltoreq.0.8 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is equal to 100% shearing strain, and 0.9 Hz.ltoreq.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 16, 1998
    Assignee: Bridgestone Corporation
    Inventors: Takaharu Kubo, Isao Hagiwara, Yoshihide Fukahori, Iki Harada