Patents by Inventor Tadao Shibutani

Tadao Shibutani 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: 10570117
    Abstract: Phenylimidazole compounds of formula (1) shown below and pharmaceutically acceptable salts thereof: Also disclosed are a pharmaceutical composition and a lipoprotein lipase activator, each containing one of the phenylimidazole compounds.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 25, 2020
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Koushi Iwata, Tadao Shibutani, Satoshi Kido, Daisuke Mori, Hidenori Yoshioka, Hikaru Nakata, Akiko Ishimaru
  • Publication number: 20180354930
    Abstract: Provided is a compound (chemotherapeutic agent) effective in the prevention and treatment of hyperlipidemia, obesity, or the like.
    Type: Application
    Filed: October 25, 2016
    Publication date: December 13, 2018
    Inventors: Koushi Iwata, Tadao Shibutani, Satoshi Kido, Daisuke Mori, Hidenori Yoshioka, Hikaru Nakata, Akiko Ishimaru
  • Patent number: 8895599
    Abstract: The present invention provides pharmaceutical compositions containing benzene compound(s) represented by General Formula (1) below and, particularly, LPL-activating compositions for use in hyperlipidemia therapeutic and preventive agents, anti-obesity agents, and the like: wherein R1, R2, R3 and R4 are as defined in the specification.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: November 25, 2014
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Irina Neagu, Michael Ohlmeyer, Vidyadhar M. Paradkar, Kurt W. Saionz, Koushi Iwata, Takashi Okamura, Tadao Shibutani
  • Publication number: 20130296342
    Abstract: The present invention provides pharmaceutical compositions containing benzene compound(s) represented by General Formula (1) below and, particularly, LPL-activating compositions for use in hyperlipidemia therapeutic and preventive agents, anti-obesity agents, and the like: wherein R1, R2, R3 and R4 are as defined in the specification.
    Type: Application
    Filed: June 28, 2013
    Publication date: November 7, 2013
    Applicant: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Irina NEAGU, Michael OHLMEYER, Vidyadhar M. PARADKAR, Kurt W. SAIONZ, Koushi IWATA, Takashi OKAMURA, Tadao SHIBUTANI
  • Patent number: 8329739
    Abstract: [Object] To provide a pharmaceutical product (chemotherapeutic agent) effective in the prevention and treatment of hyperlipidemia, obesity, etc. [Solving Means] A phenylimidazole compound represented by the following General Formula (1): wherein, R1 represents a hydrogen atom, a phenyl lower alkyl group optionally having a substituent, or a pyridyl lower alkyl group optionally having a substituent, and the benzene ring and the pyridine ring are optionally substituted with 1 or 2 substituents selected from the group consisting of halogen atoms, cyano group and halogen-substituted lower alkyl groups. One of R2 and R3 represents a hydrogen atom and the other represents a lower alkoxy group. R4 represents a phenyl group optionally having a substituent. R5 and R6 are the same or different, and represent a hydrogen atom or a lower alkyl group. R7 and R8 are the same or different, and represent a hydrogen atom or a lower alkoxy group.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: December 11, 2012
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Tadao Shibutani, Koushi Iwata, Satoshi Kido
  • Publication number: 20110275823
    Abstract: [Object] To provide a pharmaceutical product (chemotherapeutic agent) effective in the prevention and treatment of hyperlipidemia, obesity, etc. [Solving Means] A phenylimidazole compound represented by the following General Formula (1): wherein, R1 represents a hydrogen atom, a phenyl lower alkyl group optionally having a substituent, or a pyridyl lower alkyl group optionally having a substituent, and the benzene ring and the pyridine ring are optionally substituted with 1 or 2 substituents selected from the group consisting of halogen atoms, cyano group and halogen-substituted lower alkyl groups. One of R2 and R3 represents a hydrogen atom and the other represents a lower alkoxy group. R4 represents a phenyl group optionally having a substituent. R5 and R6 are the same or different, and represent a hydrogen atom or a lower alkyl group. R7 and R8 are the same or different, and represent a hydrogen atom or a lower alkoxy group.
    Type: Application
    Filed: February 3, 2010
    Publication date: November 10, 2011
    Applicant: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Tadao Shibutani, Koushi Iwata, Satoshi Kido
  • Publication number: 20110065728
    Abstract: The present invention provides pharmaceutical compositions containing benzene compound(s) represented by General Formula (1) below and, particularly, LPL-activating compositions for use in hyperlipidemia therapeutic and preventive agents, anti-obesity agents, and the like: wherein R1, R2, R3 and R4 are as defined in the specification.
    Type: Application
    Filed: May 14, 2008
    Publication date: March 17, 2011
    Applicant: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Irina Neagu, Michael Ohlmeyer, Vidyadhar M. Paradkar, Kurt W. Saionz, Koushi Iwata, Takashi Okamura, Tadao Shibutani
  • Patent number: 7071187
    Abstract: The present invention provides a novel naphthyridine derivative that is effective for relieving pain, less toxic, and also is effective for treating diabetic neuropathy, the derivative being represented by the general formula (1): wherein R1, R2, R3 and R4 are as described in the description.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: July 4, 2006
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventor: Tadao Shibutani
  • Publication number: 20040214853
    Abstract: The present invention provides a novel naphthyridine derivative that is effective for relieving pain, less toxic, and also is effective for treating diabetic neuropathy, the derivative being represented by the general formula (1): 1
    Type: Application
    Filed: February 18, 2004
    Publication date: October 28, 2004
    Inventor: Tadao Shibutani
  • Patent number: 6372749
    Abstract: The present invention provides pyrazolo[1,5-a]pyrimidine derivatives represented by the formula (1) wherein R1 represents lower alkyl or the like; one of R2 and R3 represents hydrogen and the other represents phenyl having lower alkoxy or the like, and R4 is hydrogen, carboxyl, lower alkoxy-carbonyl or the like. The derivatives of the invention have pharmacological effects such as analgesic action, inhibitory effect on nitrogen monoxide synthetase and the like and are useful as analgesics. The derivatives of the invention are also useful as therapeutic or prophylactic agents for septicemia, endotoxin shock, chronic articular rheumatism, etc.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: April 16, 2002
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Takashi Okumura, Yasuo Shoji, Tadao Shibutani, Tsuneo Yasuda, Takeshi Iwamoto
  • Patent number: 6245779
    Abstract: The present invention provides a naphthyridine derivative represented by the formula (1) wherein A is lower alkylene; R1 is H or an electron pair “-”; R2 is optionally substituted phenyl; when R1 is an electron pair “-”, R3 is a group represented by (wherein R4 and R5 each represent lower alkyl, etc.); when R1 is H, R3 is a group —S—R6 (wherein R6 is lower alkyl, etc.); and R7 is H or lower alkyl; and also provides an analgesic composition containing the above derivative as an active ingredient.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: June 12, 2001
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Tadao Shibutani, Yasuo Shoji, Takashi Okamura, Tsuneo Yasuda, Takeshi Iwamoto
  • Patent number: 6166016
    Abstract: The invention provides amide derivatives which are useful as analgesics, anti-inflammatory agents, antimicrobial drugs, hypoglycemic agents, hypolipidemic agents, antihypertensive agents, anti-cancer agents, etc., the derivatives being represented by the formula ##STR1## wherein ring A represents a benzene ring, a naphthalene ring, a pyridine ring or a furan ring; R.sup.4 represents a heterocyclic group selected from the group consisting of a lower alkyl-substituted thieno[3,2-d]pyrimidin-4-yl group, an optionally substituted pyrazolo[1,5-a]-1,3,5-triazin-4-yl group, a pyrazolo[3,4-d]pyrimidin-4-yl group substituted at the 6-position and a purin-6-yl group substituted at the 2-position; and R.sup.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: December 26, 2000
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Takashi Okamura, Yasuo Shoji, Tadao Shibutani, Tsuneo Yasuda, Takeshi Iwamoto