Patents by Inventor Takashi Ogino

Takashi Ogino 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).

  • Thiazole derivatives, processes for production thereof and pharmaceutical compositions comprising the same
    Patent number: 5369107
    Abstract: Compounds of the formula: ##STR1## wherein A is S, SO, or SO.sub.2, R.sup.1 is H or acyl, R.sup.2 is H, alkyl, hydroxyalkyl, halogen or carboxy, and R.sup.3 is pyridyl are claimed. The compounds are useful as therapeutic agents for the treatment of e.g. rheumatism, nephritis and thrombocytopenia.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: November 29, 1994
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Takashi Ogino, Norihiro Igari, Hachiro Seno, Kyoichi Shimomura
  • Thiazole derivatives, processes for production thereof and pharmaceutical compositions comprising the same
    Patent number: 5256675
    Abstract: Compounds of the formula: ##STR1## wherein A is S, SO, or SO2, R1 is H or acyl, R2 is H, alkyl, hydroxyalkyl, halogen or carboxy, and R3 is pyridyl are claimed. The compounds are useful as therapeutic agents for the treatment of e.g. rheumatism, nephritis and thrombocytopenia.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: October 26, 1993
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Takashi Ogino, Norihiro Igari, Hachiro Seno, Kyoichi Shimomura
  • Cephem compounds
    Patent number: 4719206
    Abstract: The invention relates to novel cephem compounds, of high antimicrobial activity, of the formula: ##STR1## wherein R.sup.1 and R.sup.9 are amino or acylamino; andR.sup.9 is a group of the formula: ##STR2## where R.sup.2 is organic group,X is CH or N,Z is acid residueY is CH or N and n is O; orY is N.sup..sym. --R.sup.2 wherein R.sup.2 is as defined above and n is 1,or a group of the formula:--A--N.sup..sym. (R.sup.10).sub.3whereinR.sup.10 is lower alkyl andA is lower alkylene.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: January 12, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takao Takaya, Takashi Masugi, Takashi Ogino, Hisashi Takasugi, Hideaki Yamanaka
  • Cephem compounds
    Patent number: 4584290
    Abstract: The invention relates to novel compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino or acylamino; andR.sup.9 is a group of the formula: ##STR2## wherein R.sup.2 is organic group,X is CH or N,Z is acid residueY is CH or N and n is O; orY is N.sup..sym. --R.sup.2 wherein R.sup.2 is as defined above and n is 1,or a group of the formula:--A--N.sup..sym. (R.sup.10).sub.3whereinR.sup.10 is lower alkyl andA is lower alkylene.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: April 22, 1986
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takao Takaya, Takashi Masugi, Takashi Ogino, Hisashi Takasugi, Hideaki Yamanaka
  • Thiinyl and oxothiolyl derivatives
    Patent number: 4500709
    Abstract: This invention relates to novel compounds useful as intermediates in the preparation of cephalosporin compounds of antibacterial activity, having the formula ##STR1## wherein R.sup.1 is a group of the formula ##STR2## in which X is sulfur, oxygen or substituted or unsubstituted imino, andR.sup.2 is hydrogen or a saturated or unsaturated aliphatic hydrocarbon residue,a derivative at the carboxy group thereof and salt thereof.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 19, 1985
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takao Takaya, Takashi Masugi, Takashi Ogino, Kiyoshi Tsuji
  • Cephalosporin compounds
    Patent number: 4371531
    Abstract: The invention relates to new cephalosporin compounds of high antimicrobial activity, the compounds being of the formula: ##STR1## wherein R.sup.1 is a group of the formula ##STR2## in which X is sulfur, oxygen, imino or lower-alkanoyl-substituted imino, R.sup.2 is hydrogen, lower alkyl or lower alkenyl,R.sup.3 is hydrogen or lower alkyl,R.sup.4 is hydrogen, halogen, lower alkyl, carbamoyloxymethyl or lower alkanoyloxymethyl, andR.sup.5 is carboxy or its ester, and a non-toxic, pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: February 1, 1983
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Takao Takaya, Takashi Masugi, Takashi Ogino, Kiyoshi Tsuji
  • Cephalosporin compounds and processes for the preparation thereof
    Patent number: 4242510
    Abstract: Cephalosporin compounds of the formula (I): ##STR1## wherein R.sup.1 is a group of the formula: ##STR2## in which X is sulfur, oxygen or substituted or unsubstituted imino,M is sulfur or oxygen,R.sup.2 is hydrogen, or a saturated or unsaturated aliphatic hydrocarbon residue,R.sup.3 is hydrogen or lower alkyl,R.sup.4 is hydrogen, halogen, lower alkyl, acyloxymethyl or heterocyclic-thiomethyl which may be substituted with lower alkyl, andR.sup.5 is carboxy or its derivative, and nontoxic, pharmaceutically salt thereof.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: December 30, 1980
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takao Takaya, Takashi Masugi, Takashi Ogino, Kiyoshi Tsuji