Patents by Inventor Masayoshi Shichiri

Masayoshi Shichiri 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: 9333194
    Abstract: The present invention provides novel angiogenesis inhibitors effective, safe and highly practical for inhibition of angiogenesis in various diseases, and a method for screening the same. The active ingredients of the angiogenesis inhibitors of the present invention comprise ansamycin antibiotics such as rifampicin, rifamycin SV and 3-formyl rifamycin, which have long been used extensively as antibacterial agents for treating tuberculosis or Gram-positive bacterial infections. The active ingredients of the present invention have excellent angiogenesis-inhibiting activity. The angiogenesis inhibitor of the present invention is effective for inhibition of angiogenesis in malignant tumors, diabetic retinopathy, retinal angiogenesis, inflammatory diseases, and angiogenesis accompanying cardiovascular remodeling, etc., and can be used as therapeutic agents against each disease, etc.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: May 10, 2016
    Assignee: Japan Science & Technology Agency
    Inventors: Masayoshi Shichiri, Yujiro Tanaka
  • Publication number: 20140234338
    Abstract: The present invention provides a therapeutic agent for psoriasis or atopic dermatitis, and comprises anti-Staphylococcus aureus antibodies as the active ingredient. A therapeutic agent for psoriasis or atopic dermatitis is specifically provided. This agent comprises comprehensive anti-S. aureus surface antibodies, including antibodies against entire cell-surface proteins, as the active ingredient. The agent is obtainable by: (a) treating S. aureus with a protein crosslinking/fixation reagent to fix proteins expressed on the surface of S. aureus via intramolecular crosslinking; (b) administering S. aureus treated with the protein crosslinking/fixation reagent for protein fixation to an animal as an immunogen; and (c) obtaining an antibody from the animal.
    Type: Application
    Filed: March 28, 2014
    Publication date: August 21, 2014
    Applicant: Kabushiki Kaisha Saiwai Medical
    Inventor: Masayoshi Shichiri
  • Publication number: 20120322988
    Abstract: The present invention provides a therapeutic agent for psoriasis or atopic dermatitis, and comprises anti-Staphylococcus aureus antibodies as the active ingredient. A therapeutic agent for psoriasis or atopic dermatitis is specifically provided. This agent comprises comprehensive anti-S. aureus surface antibodies, including antibodies against entire cell-surface proteins, as the active ingredient. The agent is obtainable by: (a) treating S. aureus with a protein crosslinking/fixation reagent to fix proteins expressed on the surface of S. aureus via intramolecular crosslinking; (b) administering S. aureus treated with the protein crosslinking/fixation reagent for protein fixation to an animal as an immunogen; and (c) obtaining an antibody from the animal.
    Type: Application
    Filed: November 12, 2010
    Publication date: December 20, 2012
    Inventor: Masayoshi Shichiri
  • Publication number: 20120164135
    Abstract: A method for preparing comprehensive antibodies against whole proteins that are expressed on the surface of a microorganism and the comprehensive antibodies obtained by the method are provided. The method for preparing comprehensive antibodies against whole proteins that are expressed on the surface of a microorganism comprises: (a) treating a microorganism with a protein crosslinking and immobilization reagent and thus immobilizing proteins expressed on the surface of the microorganism via intramolecular crosslinking; (b) administering the microorganism as an immunogen immobilized using the protein crosslinking and immobilization reagent to an animal; and (c) obtaining antibodies from the animal.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 28, 2012
    Applicant: KABUSHIKI KAISHA SAIWAI MEDIX
    Inventors: Masayoshi Shichiri, Yasuhiro Ii, Ikuko Ii, Kentaro Ii, Daisuke Ii, Maiko Ii
  • Publication number: 20110165173
    Abstract: The present invention provides a prophylactic and therapeutic agent for arteriosclerotic diseases and a method or reagent for detecting arteriosclerotic diseases. Further, the present invention provides a therapeutic agent for an arteriosclerotic disease, comprising salusin-? as an active ingredient, a therapeutic agent for an arteriosclerotic disease, comprising an antagonist of salusin-? as an active ingredient, and a method for detecting an arteriosclerotic disease, comprising assaying salusin-? in a biological sample.
    Type: Application
    Filed: May 9, 2008
    Publication date: July 7, 2011
    Applicants: PROTEINEXPRESS CO., LTD., SHOWA UNIVERSITY, NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Takuya Watanabe, Masayoshi Shichiri
  • Publication number: 20110151485
    Abstract: Disclosed are a method for screening for an antiangiogenic agent and a method for screening for an antiangiogenic gene, both of which are achieved by detecting an antiangiogenic signal within a short time by a simple means. The method for screening for an antiangiogenic agent comprises: a candidate compound administration step of administering a candidate compound for the antiangiogenic agent to a vascular endothelial cell or a cultured cell derived from a vascular endothelial cell; a cell-maintaining step of maintaining the vascular endothelial cell or the cultured cell derived from the vascular endothelial cell to which the candidate compound has been administered; and a signal detection step of detecting the phosphorylation of a protein phosphorylated by the administration of endostatin.
    Type: Application
    Filed: August 24, 2009
    Publication date: June 23, 2011
    Applicant: National University Corporation Tokyo Medical and Dental University
    Inventor: Masayoshi Shichiri
  • Patent number: 7829526
    Abstract: The present invention is to provide a novel peptide having a potent hypotensive activity by inhibiting cardiac contractility, a DNA encoding the peptide, an antibody against the peptide, or a cardioinhibitory/hypotensive agent comprising the peptide as an active ingredient. A search of a genetic data base revealed the presence of a peptide biosynthesized by a processing of unspliced product of TOR2A mRNA. As a result of functional analysis, a peptide hormone exerting a potent bioactivity and expressed abundantly throughout human organs was found. The peptide is hydrophobic with a molecular weight of 2664.02 consisting of 24 amino acids (AIFIFISNTGGKQINQVALEAWRS; SEQ ID NO.: 2) and shows a negative inotropism in rat hearts, as well as a marked systemic hypotensive activity.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: November 9, 2010
    Assignee: Japan Science and Technology Agency
    Inventor: Masayoshi Shichiri
  • Publication number: 20100004327
    Abstract: The present invention provides novel angiogenesis inhibitors effective, safe and highly practical for inhibition of angiogenesis in various diseases, and a method for screening the same. The active ingredients of the angiogenesis inhibitors of the present invention comprise ansamycin antibiotics such as rifampicin, rifamycin SV and 3-formyl rifamycin, which have long been used extensively as antibacterial agents for treating tuberculosis or Gram-positive bacterial infections. The active ingredients of the present invention have excellent angiogenesis-inhibiting activity. The angiogenesis inhibitor of the present invention is effective for inhibition of angiogenesis in malignant tumors, diabetic retinopathy, retinal angiogenesis, inflammatory diseases, and angiogenesis accompanying cardiovascular remodeling, etc., and can be used as therapeutic agents against each disease, etc.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 7, 2010
    Applicant: Japan Science & Technology Agency
    Inventors: Masayoshi Shichiri, Yujiro Tanaka
  • Publication number: 20080267871
    Abstract: [Object] The present invention is to provide a novel peptide having a potent hypotensive activity by inhibiting cardiac contractility, a DNA encoding the peptide, an antibody against the peptide, or a cardioinhibitory/hypotensive agent comprising the peptide as an active ingredient. A search of a genetic data base revealed the presence of a peptide biosynthesized by a processing of unspliced product of TOR2A mRNA. As a result of functional analysis, a peptide hormone exerting a potent bioactivity and expressed abundantly throughout human organs was found. The peptide is hydrophobic with a molecular weight of 2664.02 consisting of 24 amino acids (AIFIFISNTGGKQINQVALEAWRS) and shows a negative inotropism in rat hearts, as well as a marked systemic hypotensive activity.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 30, 2008
    Inventor: Masayoshi Shichiri
  • Publication number: 20060035878
    Abstract: The present invention provides novel angiogenesis inhibitors effective, safe and highly practical for inhibition of angiogenesis in various diseases, and a method for screening the same. The active ingredients of the angiogenesis inhibitors of the present invention comprise ansamycin antibiotics such as rifampicin, rifamycin SV and 3-formyl rifamycin, which have long been used extensively as antibacterial agents for treating tuberculosis or Gram-positive bacterial infections. The active ingredients of the present invention have excellent angiogenesis-inhibiting activity. The angiogenesis inhibitor of the present invention is effective for inhibition of angiogenesis in malignant tumors, diabetic retinopathy, retinal angiogenesis, inflammatory diseases, and angiogenesis accompanying cardiovascular remodeling, etc., and can be used as therapeutic agents against each disease, etc.
    Type: Application
    Filed: June 19, 2003
    Publication date: February 16, 2006
    Inventors: Masayoshi Shichiri, Yujiro Tanaka