Patents by Inventor Jun Kunitomo

Jun Kunitomo 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).

  • PYRIDAZINONE COMPOUNDS
    Publication number: 20120277431
    Abstract: The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
    Type: Application
    Filed: July 6, 2012
    Publication date: November 1, 2012
    Inventors: Takahiko Taniguchi, Jun Kunitomo
  • PYRIDAZINONE COMPOUNDS
    Publication number: 20120277430
    Abstract: The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
    Type: Application
    Filed: July 6, 2012
    Publication date: November 1, 2012
    Inventors: Takahiko TANIGUCHI, Jun Kunitomo
  • PYRIDAZINONE COMPOUNDS
    Publication number: 20120277204
    Abstract: The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
    Type: Application
    Filed: July 6, 2012
    Publication date: November 1, 2012
    Inventors: Takahiko TANIGUCHI, Akira Kawada, Mitsuyo Kondo, John F. Quinn, Jun Kunitomo, Masato Yoshikawa, Makoto Fushimi
  • PYRIDAZINONE COMPOUNDS
    Publication number: 20120028951
    Abstract: The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
    Type: Application
    Filed: February 4, 2010
    Publication date: February 2, 2012
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Takahiko Taniguchi, Akira Kawada, Mitsuyo Kondo, John F. Quinn, Jun Kunitomo, Masato Yoshikawa, Makoto Fushimi
  • Pyridazinone compounds
    Publication number: 20100197651
    Abstract: The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0): wherein R1 represents a substituent, R2 represents a hydrogen atom, or a substituent, R3 represents a hydrogen atom, or a substituent, Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 5, 2010
    Inventors: Takahiko Taniguchi, Akira Kawada, Mitsuyo Kondo, John F. Quinn, Jun Kunitomo, Masato Yoshikawa, Makoto Fushimi
  • Function regulator for retinoid relative receptor
    Patent number: 7223791
    Abstract: The present invention provides a retinoid-related receptor (except retinoic acid receptors) function regulating agent comprising a compound represented by the formula: wherein one of R1 and R2 is an optionally substituted monocyclic aromatic hydrocarbon group or an optionally substituted monocyclic aromatic heterocyclic group containing one heteroatom, and the other is a hydrogen atom and the like; B is a 5- or 6-membered heterocycle (except 1,3-azole); A is an optionally substituted aromatic hydrocarbon group or an optionally substituted aromatic heterocyclic group; and R3 is a hydrogen atom and the like, or a salt thereof, which is useful as an agent for the prophylaxis or treatment of diabetes mellitus, hyperlipidemia, impaired glucose tolerance or the like.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: May 29, 2007
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Tsuyoshi Maekawa, Jun Kunitomo, Hiroyuki Odaka, Hiroyuki Kimura
  • Function regulator for retinoid relative receptor
    Publication number: 20040157881
    Abstract: The present invention provides a retinoid-related receptor (except retinoic acid receptors) function regulating agent comprising a compound represented by the formula: 1
    Type: Application
    Filed: December 16, 2003
    Publication date: August 12, 2004
    Inventors: Tsuyoshi Maekawa, Jun Kunitomo, Hiroyuki Odaka, Hiroyuki Kimura