Patents by Inventor Tadao Hamaya

Tadao Hamaya 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: 20110098358
    Abstract: A human adrenergic ?3 receptor ligand containing the following 3 components: (A) an unsaturated fatty acid having not less than three double bonds or a pharmaceutically acceptable salt thereof, (B) an unsaturated fatty acid having one or two double bond(s) or a pharmaceutically acceptable salt thereof; and (C) a saturated fatty acid or a pharmaceutically acceptable salt thereof; and a food product and a pharmaceutical containing it, especially, an agent for prophylaxis and/or amelioration of lifestyle-related diseases such as obesity, adipositas, diabetes, hyperlipemia, hypertension and/or gout.
    Type: Application
    Filed: June 11, 2009
    Publication date: April 28, 2011
    Applicant: RICOM CORPORATION
    Inventors: Yasuo Fujimoto, Shoichi Kurihara, Tadao Hamaya
  • Patent number: 7195675
    Abstract: The present invention herein provides a chitosan-containing polysaccharide and a method for the preparation thereof as well as a medicine and a food containing the polysaccharide. The chitosan-containing polysaccharide is prepared by a method comprising the steps of heat-treating a fungus in a concentrated aqueous caustic alkali solution; subjecting the resulting solution to a solid-liquid separation treatment; dissolving the resulting solid contents in an aqueous organic acid solution; adding, to the resulting solution, an alcohol or a caustic alkali to thus form precipitates; washing the resulting precipitates; and then drying them. This chitosan-containing polysaccharide is a compound in which homopolymers of glucosamine are linked with glucan through covalent bonds; it has a molar ratio of glucosamine and glucose constituting the polysaccharide ranging from 1:5 to 5:1; it has a molecular weight of about 150,000; and it does not contain any ?(1?3) bonds, but comprises ?(1?4) bonds and ?(1?6) bonds.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: March 27, 2007
    Assignee: Ricom Corporation
    Inventors: Hideo Okazaki, Tadao Hamaya, Shoichi Kurihara
  • Publication number: 20050236328
    Abstract: The present invention herein provides a chitosan-containing polysaccharide and a method for the preparation thereof as well as a medicine and a food containing the polysaccharide. The chitosan-containing polysaccharide is prepared by a method comprising the steps of heat-treating a fungus in a concentrated aqueous caustic alkali solution; subjecting the resulting solution to a solid-liquid separation treatment; dissolving the resulting solid contents in an aqueous organic acid solution; adding, to the resulting solution, an alcohol or a caustic alkali to thus form precipitates; washing the resulting precipitates; and then drying them. This chitosan-containing polysaccharide is a compound in which homopolymers of glucosanine are linked with glucan through covalent bonds; it has a molar ratio of glucosamine and glucose constituting the polysaccharide ranging from 1:5 to 5:1; it has a molecular weight of about 150,000; and it does not contain any ?(1?3) bonds, but comprises ?(1?4) bonds and ?(1?6) bonds.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 27, 2005
    Inventors: Hideo Okazaki, Tadao Hamaya, Shoichi Kurihara
  • Patent number: 5804174
    Abstract: A deodorizer comprises a hydrophilic solvent extract of fruit-bodies of champignon mushroom or powder of the extract as an effective component. The extract of champignon mushroom used as an effective component can be prepared by a method which comprises the step of immersing the mushroom in a hydrophilic solvent at a temperature ranging from 60.degree. to 1000.degree. C. for 15 minutes to 2 hours to perform extraction. The extract can further be treated to obtain the effective components in the form of powder.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: September 8, 1998
    Assignees: Ricom Corporation, Zeria Pharmaceuticals, Mitsui & Company Ltd.
    Inventors: Sadami Ishibashi, Tadao Hamaya, Tadashi Imai, Masao Iijima
  • Patent number: 5639470
    Abstract: A deodorizer comprises a hydrophilic solvent extract of fruit-bodies of champignon mushroom or powder of the extract as an effective component. The extract of champignon mushroom used as an effective component can be prepared by a method which comprises the step of immersing the mushroom in a hydrophilic solvent at a temperature ranging from 60.degree. to 100.degree. C. for 15 minutes to 2 hours to perform extraction. The extract can further be treated to obtain the effective components in the form of powder.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: June 17, 1997
    Assignees: Ricom Corp, Zeria Pharmaceutical Co. Ltd., Mitsui & Co.
    Inventors: Sadami Ishibashi, Tadao Hamaya, Tadashi Imai, Masao Iijima