Patents by Inventor Itsuo Yamamoto

Itsuo Yamamoto 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: 6690975
    Abstract: While an interferon therapy is a conventional method for treating hepatitis C, no particular option exists currently in the treatment except for this interferon therapy. An object of the present invention is to provide a novel method for treating hepatitis C. The present invention includes a method for treating hepatitis C comprising warming a liver region of a human by sandwiching an upper abdominal region of a human body between electrodes on the front and back by supplying a high-frequency electric power to these electrodes.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: February 10, 2004
    Assignees: Bistner Co., Ltd., Iryodenshiseiko Co., Ltd., Yamamoto Vinita Co., Ltd.
    Inventors: Itsuo Yamamoto, Iwao Nishide, Susumu Yukawa, Ostapenko Valentyna
  • Publication number: 20030216798
    Abstract: While an interferon therapy is a conventional method for treating hepatitis C, no particular option exists currently in the treatment except for this interferon therapy. An object of the present invention is to provide a novel method for treating hepatitis C. The present invention includes a method for treating hepatitis C comprising warming a liver region of a human by sandwiching an upper abdominal region of a human body between electrodes on the front and back by supplying a high-frequency electric power to these electrodes.
    Type: Application
    Filed: May 17, 2002
    Publication date: November 20, 2003
    Applicants: Itsuo Yamamoto, Iwao Nishide, Susumu Yukawa, Ostapenko Valentyna, BISTNER CO., LTD., IRYODENSHISEIKO CO., LTD., YAMAMOTO VINITA CO., LTD.
    Inventors: Itsuo Yamamoto, Iwao Nishide, Susumu Yukawa, Ostapenko Valentyna
  • Patent number: 5294304
    Abstract: This invention relates to a process for the production of absolute alcohol from aqueous alcohol, whereby saving of energy to a greater extent is rendered possible in a more simple process, as compared with the prior art azeotropic distillation method using benzene or cyclohexane. That is, aqueous alcohol is subjected to extractive distillation in a first distillation column under such a condition that a liquid and gas of a solvent simultaneously coexist using low pressure propane, propylene and butane as the solvent, absolute alcohol substantially free from water is recovered from the bottom of the distillation column and subjected to stripping of hydrocarbons in a second distillation column, during which the gaseous phases of the first and second distillation columns are mixed and compressed, utilized through recompression as a heat source of a reboiler of the first distillation column, subjected to separation of water content and recycled to the upper parts of the first and second distillation columns.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: March 15, 1994
    Assignee: Ministry of International Trade and Industry
    Inventors: Yoshikazu Kano, Hirotoshi Horizoe, Tetsuya Tanimoto, Itsuo Yamamoto
  • Patent number: 4981906
    Abstract: A heat and impact resistant thermoplastic resin composition which comprises:100 parts by weight of a resin mixture comprising from 20 to 80% by weight of a polyamide resin (A) and from 20 to 80% by weight of a graft copolymer resin (B) obtained by graft polymerizing from 30 to 65 parts by weight of a monomer mixture comprising from 30 to 80% by weight of an aromatic vinyl monomer, from 5 to 65% by weight of an N-substituted maleimide monomer and from 0 to 40% by weight of other vinyl monomer copolymerizable with these monomers (provided that the total amount of said monomer mixture is 100% by weight) to from 35 to 70 parts by weight of a conjugated diene rubber;from 0 to 40 parts by weight of a copolymer resin (C) comprising from 30 to 80% by weight of an aromatic vinyl monomer component, from 5 to 65% by weight of an N-substituted maleimide monomer component and from 0 to 40% by weight of other vinyl monomer component copolymerizable with these monomers (provided that the total amount of the monomer componen
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: January 1, 1991
    Assignee: Monsanto Kasei Company
    Inventors: Hiromi Tomono, Itsuo Yamamoto, Yuji Aoki, Yuji Koyama
  • Patent number: 4587978
    Abstract: An apparatus for high-frequency hyperthermia wherein a pair of electrodes having round holes and thereby annularly shaped are attached to the surface of the body of a patient so as to interpose therebetween an affected part located in the depth of the body. The electrodes are disposed in such a manner that the affected part is allowed to be collinear with the centers of the round holes. In combination with these electrodes, a pair of masks for intercepting high-frequency energy from the normal cellular tissues contiguous to the affected part may also be used.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: May 13, 1986
    Inventors: Sumio Suyama, Itsuo Yamamoto