Patents by Inventor Ken-ichi Kuroshima

Ken-ichi Kuroshima 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: 6268354
    Abstract: This invention is to provide a pharmaceutical composition for antagonizing CCR5 which comprises a compound of the formula: wherein R1 is an optionally substituted 5- to 6-membered ring; W is a divalent group of the formula: wherein the ring A is an optionally substituted 5- to 6-membered aromatic ring, X is an optionally substituted C, N or O atom, and the ring B is an optionally substituted 5- to 7-membered ring; Z is a chemical bond or a divalent group; R2 is (1) an optionally substituted amino group in which a nitrogen atom may form a quaternary ammonium, etc., or a salt thereof.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: July 31, 2001
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Osamu Nishimura, Masanori Baba, Hidekazu Sawada, Naoyuki Kanzaki, Ken-ichi Kuroshima, Mitsuru Shiraishi, Yoshio Aramaki
  • Patent number: 6172061
    Abstract: This invention is to provide a pharmaceutical composition for antagonizing CCR5 which comprises a compound of the formula: wherein R1 is an optionally substituted 5- to 6-membered ring; W is a divalent group of the formula: wherein the ring A is an optionally substituted 5- to 6-membered aromatic ring, X is an optionally substituted C, N or O atom, and the ring B is an optionally substituted 5- to 7-membered ring; Z is a chemical bond or a divalent group; R2 is (1) an optionally substituted amino group in which a nitrogen atom may form a quaternary ammonium, etc., or a salt thereof.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: January 9, 2001
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Osamu Nishimura, Masanori Baba, Hidekazu Sawada, Naoyuki Kanzaki, Ken-ichi Kuroshima, Mitsuru Shiraishi, Yoshio Aramaki
  • Patent number: 5712100
    Abstract: Disclosed are (A) an antibody to a peptide consisting of 8 to 9, or 12 to 14 successive amino acids from a polypeptide having nerve growth factor-like activity, (B) a method for producing the antibody, (C) a cloned hybridoma which produces the antibody, (D) a method for producing the cloned hybridoma, (E) a conjugate of the above mentioned peptide with a carrier protein, and (F) a method for purifying, and a method for detecting and assaying a polypeptide having nerve growth factor-like activity.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: January 27, 1998
    Assignee: Takeda Limited Industries, Ltd.
    Inventors: Kazuo Nakahama, Tsunehiko Fukuda, Tsutomu Kurokawa, Ken-Ichi Kuroshima
  • Patent number: 5656435
    Abstract: Disclosed are (A) an antibody to a peptide including at least 8 successive amino acids of an amino acid sequence represented by formulaTyrAlaGluHisLysSerHisArgGlyGluTyrSerValCys AspSerGluSerLeuTrpValThrAspLysSerSerAlaIle AspIleArgGlyHisGlnValThrValLeuGlyGluIleLys ThrGlyAsnSerProValLysGlnTyrPheTyrGluThrArg CysLysGluAlaArgProValLysAsnGlyCysArgGlyIle AspAspLysHisTrpAsnSerGlnCysLysThrSerGlnThr TyrValArgAlaLeuThrSerGluAsnAsnLysLeuValGly TrpArgTrpIleArgIleAspThrSerCysValCysAlaLeu SerArgLysIleGlyArg[1],wherein said antibody has no substantial cross-reactivity with human NGF,(B) a method for producing the antibody, (C) a cloned hybridoma which produces the antibody, (D) a method for producing the cloned hybridoma, (E) a partial peptide of a polypeptide (I) including an amino acid sequence represented by formula (1), (F) a conjugate of a peptide including at least 8 successive amino acids of formula (1) with a carrier protein, (G) a method for purifying the polypeptide (I) and (H) a method for detecting and assaying t
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: August 12, 1997
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Kazuo Nakahama, Tsunehiko Fukuda, Tsutomu Kurokawa, Ken-ichi Kuroshima
  • Patent number: 5571895
    Abstract: The present invention relates to a glia activating factor (GAF) in which 33 to 49 N-terminal amino acids are deleted from the N-terminus of the GAF polypeptide of SEQ ID NO: 3, as well as an anti-GAF antibody which is highly sensitive to assay the GAF and is capable of neutralizing GAF's activity, is produced.Using the antibody, GAF and its biological activity can be assayed easily with high sensitivity. Further, the neutralizing antibody can be expected to have preventive and curative effects on diseases caused by GAF's excessive action. Furthermore, the GAF polypeptide disclosed herein is more stable to acids and heat than the conventional GAFs, therefore, it can be used as a platelet-increasing agent, etc., more advantageously than the previously known GAFs.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: November 5, 1996
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Tsutomu Kurokawa, Ken-ichi Kuroshima, Sumie Yoshitomi, Chisako Seko