Patents by Inventor Katsuo Anma

Katsuo Anma 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).

  • 2,3-di-substituted-5,6-dihydroimidazo [2,1-b] thiazole, its salts, production thereof and anti-inflammatory agent containing the same
    Patent number: 4629793
    Abstract: Compounds of the formula wherein R is ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of hydrogen, chlorine, bromine, lower alkyl, lower alkoxy and naphthyl, provided that when R.sub.1 is lower alkyl, R.sub.2 and R.sub.3 are hydrogen, chlorine, bromine or lower alkoxy, or a pharmaceutically acceptable salt thereof, have anti-carrageenin edema activity, and are useful as anti-inflammatory agents and immuno modulators. They are produced by reacting an amide of the formula ##STR2## wherein R has the same meanings hereinabove, with N,N'-ethylene thiourea.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: December 16, 1986
    Assignees: Toyo Jozo Kabushiki Kaisha, Kumiai Chemical Industry Co., Ltd.
    Inventors: Kazuo Nishio, Isao Chiyomaru, Katsuo Anma, Kazuko Yamamoto, Hiroshi Ohno, Noriyasu Takayanagi
  • 2,-3-Di-substituted-5,6-dihydroimidazo [2,1-b] thiazole, its salts, production thereof and anti-inflammatory agent containing the same
    Patent number: 4556669
    Abstract: Compounds of the formula ##STR1## wherein R is ##STR2## in which R.sub.1, R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of hydrogen, chlorine, bromine, lower alkyl, lower alkoxy and naphthyl, provided that when R.sub.1 is lower alkyl, R.sub.2 and R.sub.3 are hydrogen, chlorine, bromine or lower alkoxy, or a pharmaceutically acceptable salt thereof, have anti-carrageenin edema activity, and are useful as anti-inflammatory agents and immuno modulators. They are produced by reacting an amide of the formula ##STR3## wherein R has the same meanings hereinabove, with N,N'-ethylene thiourea.
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: December 3, 1985
    Assignees: Kumiai Kagaku Kogyo Kabushiki Kaisha, Toyo Jozo Kabushiki Kaisha
    Inventors: Kazuo Nishio, Isao Chiyomaru, Katsuo Anma, Kazuko Yamamoto, Hiroshi Ohno, Noriyasu Takayanagi