Patents by Inventor Kazuyoshi Kuratani

Kazuyoshi Kuratani 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).

  • Quinolyl- and isoquinolyl-methoxyphenyl-dithioacetyl derivatives useful as antiinflammatory agents
    Patent number: 5081126
    Abstract: The invention relates to dithioacetal compounds having 5-lipoxygenase-inhibiting activity, of the formula: ##STR1## wherein R.sup.1 is lower alkyl, di-(lower)alkylamino, aryl, or heterocyclic group which may have one or more substitutents selected from halogen, lower alkyl, lower alkoxy and phenyl,R.sup.2 and R.sup.3 are each lower alkyl, aryl or ar-(lower)alkyl, or R.sup.2 and R.sup.3 are together to form 1,3-dithian ring,R.sup.4 is hydrogen or lower alkoxy, andn is 0 or an integer 1 to 4 and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: January 14, 1992
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Teruo Oku, Yoshio Kawai, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto
  • Benzothiazolylmethoxy compounds, pharmaceutical compositions comprising the same and their use as anti-inflammatory or anti-allergenic agents
    Patent number: 5061718
    Abstract: The invention relates to an anti-inflammatory or antiallergic composition containing a compound of the formula ##STR1## wherein A is ##STR2## R.sup.1 is aryl which may have cyano or carbamoyl, or heterocyclic group which may have lower alkyl,R.sup.2 is hydrogen or lower alkyl,R.sup.3 is lower alkyl,X is hydrogen, halogen, hydroxy or lower alkyl,m is an integer 1 or 2, andn is an integer 1 to 4, or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: October 29, 1991
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Teruo Oku, Yoshio Kawai, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto
  • Quinolyl methoxy compounds and their use as antiasthmatic agents
    Patent number: 5045548
    Abstract: The invention relates to a method of treating asthma comprising administering a compound of the formula: ##STR1## wherein A is ##STR2## R.sup.1 is quinolyl, R.sup.2 is hydrogen or lower alkyl,R.sup.3 is lower alkyl,X is hydrogen, halogen, hydroxy or lower alkyl,m is integer 1 or 2, andn is an integer 1 or 4, or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: September 3, 1991
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Teruo Oku, Yoshio Kawai, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto
  • Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same
    Patent number: 4965274
    Abstract: The invention relates to a method of treating arteriosclerosis or pancreatitis comprising administering a compound of the formula: ##STR1## wherein A is ##STR2## R.sup.1 is quinolyl, R.sup.2 is hydrogen or lower alkyl,R.sup.3 is lower alkyl,X is hydrogen, halogen, hydroxy or lower alkyl,m is an integer 1 or 2, andn is an integer 1 to 4, or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: October 23, 1990
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Teruo Oku, Yoshio Kawai, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto
  • Dithioacetal compounds, processes for preparation thereof and pharmaceutical composition comprising the same
    Patent number: 4963576
    Abstract: The invention relates to dithioacetal compounds having 5-lipoxygenase-inhibiting activity, of the formula: ##STR1## wherein R.sup.1 is lower alkyl, di-(lower)alkylamino, aryl, or heterocyclic group which may have one or more substituents selected from halogen, lower alkyl, lower alkoxy and phenyl,R.sup.2 and R.sup.3 are each lower alkyl, aryl or ar-(lower)alkyl, or R.sup.2 and R.sup.3 are together to form 1,3-dithian ring,R.sup.4 is hydrogen or lower alkoxy, andn is O or an integer 1 to 4 and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: October 16, 1990
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Teruo Oku, Yoshio Kawai, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto
  • Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same
    Patent number: 4923881
    Abstract: The invention relates to an anti-inflammatory or antiallergic composition containing a compound of the formula ##STR1## wherein A is ##STR2## R.sup.1 is aryl which may have cyano or carbamoyl, or heterocyclic group which may have lower alkyl,R.sup.2 is hydrogen or lower alkyl,R.sup.3 is lower alkyl,X is hydrogen, halogen, hydroxy or lower alkyl,m is an integer 1 or 2, andn is an integer 1 to 4, or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: May 8, 1990
    Assignee: Fujisawa Phatmaceutical Co., Ltd.
    Inventors: Teruo Oku, Yoshio Kawai, Hiroshi Kayakiri, Kazuyoshi Kuratani, Masashi Hashimoto