Patents by Inventor Shuichi Komatsu

Shuichi Komatsu 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).

  • Patent number: 4757492
    Abstract: A method for recording and reproducing information on or from an optical recording medium, which comprises:recording information by illuminating light to the optical recording medium which is equipped as a recording film with a thin film comprising dispersed fine grains of a material capable of showing a metal-insulator transition to cause the metal-insulator transition owing to the heating effect of the light; and reproducing the information by utilizing changes in optical characteristics owing to a plasma resonance absorption by the fine grains dispersed in the thin film. The method of this invention permits high-density recording with high sensitivity and upon reproduction, enables reproduction of record with a high signal/noise ratio. The recording medium obtained by this method is an erasable optical recording medium, which permits its reutilization for recording and reproduction after erasure of the previously-stored record.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: July 12, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noburu Fukushima, Hisashi Yoshino, Masashi Sahashi, Shuichi Komatsu
  • Patent number: 4681251
    Abstract: There is disclosed a method of joining Ni-base heat-resisting alloys which comprises forming, under an inert atmosphere, an aluminum layer on at least surfaces to be joined of a constructional member which has been divided into a plural number of parts composed of a Ni-base heat-resisting alloy reinforced by a .gamma.' phase in Ni.sub.3 Al system, followed by heating the parts so that said aluminum is dispersed in said Ni-base heat-resisting alloys, the joining portion (joint) contains substantially no .beta.-NiAl phase and a .gamma.'-Ni.sub.3 Al phase is dispersed therein to join the parts. The joint provided by the method according to the present invention has been improved in its strength and corrosion resistance at a high temperature. Further, the method according to the present invention can be carried out with a high degree of freedom in supplying a joining filler metal.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: July 21, 1987
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Shuichi Komatsu, Kazumi Shimotori, Hiromitsu Takeda, Masako Nakahashi
  • Patent number: 4321821
    Abstract: Disclosed is a method of measuring the deterioration degree of heat resistant parts made of a 12% Cr steel containing at least one of Mo and W and used under high temperatures on the basis of the amount of Laves phase precipitated within said 12% Cr steel.
    Type: Grant
    Filed: January 3, 1980
    Date of Patent: March 30, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Shuichi Komatsu, Masako Nakahashi, Hiromitsu Takeda, Masayuki Yamada
  • Patent number: 4287417
    Abstract: A method of determining the degree of deterioration of a heat-resistant ferritic steel part, such as that of Cr-Mo-V steel practically applied in a region of high temperature from at least one of the crystallization factors such as the particle size, interparticle distance and crystallization density of a carbide, particularly V.sub.4 C.sub.3 crystallized out in said ferritic steel part.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: September 1, 1981
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Shuichi Komatsu, Shinichi Nakamura, Kazumi Shimotori, Yoshio Nakayama
  • Patent number: 4155782
    Abstract: A watch case made of an alloy consisting essentially of 30 to 45% by weight of Cr, 2.5 to 5.0% by weight of Al and the balance essentially Ni, said alloy having been subjected to an aging treatment. The watch case is high in hardness and corrosion resistance and presents a good mirror-like surface.
    Type: Grant
    Filed: November 9, 1976
    Date of Patent: May 22, 1979
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Kazumi Shimotori, Itaru Watanabe, Masako Nakahashi, Shuichi Komatsu