Patents by Inventor Kazuyoshi Kitano

Kazuyoshi Kitano 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: 8354439
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: January 15, 2013
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
  • Publication number: 20070238758
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.
    Type: Application
    Filed: May 16, 2007
    Publication date: October 11, 2007
    Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
  • Publication number: 20070105911
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: (wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.
    Type: Application
    Filed: December 12, 2006
    Publication date: May 10, 2007
    Inventors: Masatoshi Chihiro, Takayuki Matsuzani, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Jurimura, Fujio Tabusa
  • Publication number: 20040014792
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: 1
    Type: Application
    Filed: April 29, 2003
    Publication date: January 22, 2004
    Applicant: Otsuka Pharmaceutical Co. Ltd.
    Inventors: Masatoshi Chihiro, TakayukI Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Fujio Tabusa
  • Patent number: 6583163
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: June 24, 2003
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
  • Publication number: 20020013469
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: 1
    Type: Application
    Filed: June 25, 2001
    Publication date: January 31, 2002
    Applicant: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
  • Patent number: 6291487
    Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: [wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: September 18, 2001
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
  • Patent number: 5753644
    Abstract: An object of the present invention is to provide a vasopressin antagonist and oxytocin antagonist.The vasopressing antagonist and oxytocin antagonist according to the present invention contain, as the active ingredient, a benzoheterocyclic compound represented by the general formula (1): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and the carbon-carbon bond between 4- and 5-positions in the benzoazepine skeleton are the same as defined in claims 1, 2 and 3.) or salt thereof.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: May 19, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ogawa, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Kazuyoshi Kitano, Michiaki Tominaga, Yoichi Yabuuchi
  • Patent number: 5622947
    Abstract: An object of the present invention is to provide a vasopressin antagonist and oxytocin antagonist.The vasopressing antagonist and oxytocin antagonist according to the present invention contain, as the active ingredient, a benzoheterocyclic compound represented by the general formula (1): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and the carbon-carbon bond between 4- and 5-positions in the benzoazepine skeleton are the same as defined in claims 1, 2 and 3.) or salt thereof.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: April 22, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ogawa, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Kazuyoshi Kitano, Michiaki Tominaga, Yoichi Yabuuchi
  • Patent number: 5300513
    Abstract: Novel carbostyril derivatives of the formula: ##STR1## wherein X is 0 or S; Y is H or alkyl; R.sup.A is a group of the ##STR2## {wherein n is 1 or 2, A is alkylene, R.sup.1 is benzoyl having optionally 1-3 substituents, R.sup.2A is ##STR3## is (i) alkoxy, (ii) substituted or unsubstituted 5- or 6-membered heterocylic group, (iii) alkenylthio, (iv) pyrrolidinyl-alkyl--S--, (v) pyrrolidinyl-alkyl--SO--, (vi) pyrrolidinyl-alkyl--SO.sub.2 --, (vii) --O--B--NR.sup.4 R.sup.5 [B is alkylene having optionally OH, R.sup.4 is H, R.sup.5 is tricyclo[3.3.1.1]decanyl, tricyclo[3.3.1.1]decanylalkyl, etc., or R.sup.4 and R.sup.5 may together form a group of ##STR4## (R.sup.6 is substituted or unsubstituted amino)] or (viii) substituted alkoxy; m is 1 to 3]}, which have excellent vasopressin antagonistic activities and are useful as vasodilator, hypotensive agent, water diuretics, platelet agglutination inhibitor, and a vasopressin antagonistic composition containing the compound as the active ingredient.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: April 5, 1994
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ogawa, Hisashi Miyamoto, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Kazuyoshi Kitano, Takafumi Fujiioka, Shuji Teramoto, Michiaki Tominaga, Yoichi Yabuuchi
  • Patent number: 5244898
    Abstract: Novel benzoheterocyclic compounds of the formula: ##STR1## wherein R.sup.1 is H, halogen, OH, etc,; R.sup.2 is H, alkyl, halogen or alkoxy; R.sup.3 is phenyl-alkanoylamino, or ##STR2## R.sup.4 is H, --NR.sup.6 R.sup.7, alkenyloxy, HO-alkyl, --O--CO--A--NR.sup.8 R.sup.9, etc.; R.sup.5 is H, OH, etc., or a salt thereof, which have excellent vasopressin antagonistic activities and useful as vasodilator, hypotensive agent, water diuretics, platelet agglutination inhibitor, and a vasopressin antagonistic composition containing the compound as the active ingredient.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ogawa, Kazumi Kondo, Hiroshi Yamashita, Kenji Nakaya, Hajime Komatsu, Michinori Tanaka, Kazuyoshi Kitano, Michiaki Tominaga, Yoichi Yabuuchi