Patents by Inventor Azuma Igarashi

Azuma Igarashi 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).

  • Phenoxyacetic acid compounds and medical preparations containing them
    Patent number: 5360909
    Abstract: Disclosed are phenoxyacetic acid compounds of formula (I): ##STR1## where X is a hydrogen atom, a lower alkyl group or a halogen atom;R1 is a carboxyl group or a lower alkoxycarbonyl group;Y is an oxygen atom, ##STR2## n is an integer of from 0 to 5; Z is ##STR3## R2 is a hydrogen atom or a lower alkyl group; and m is 0 or 1.The compounds and their physiologically acceptable salts are used as thromboxane A2 antagonistic agents, leukotriene antagonistic agents and/or anti-allergic agents.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: November 1, 1994
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Azuma Igarashi, Sachiko Maeda, Katuyoshi Sugizaki, Takashi Shizawa, Atsumi Tajima, Kenichi Abe, Shinji Ozawa
  • Phenoxyacetic acid compounds, method for production thereof, and pharmaceutical preparations containing same
    Patent number: 5179105
    Abstract: A phenoxyacetic acid compound represented by the general formula I: ##STR1## wherein X is one member selected from the class consisting of hydrogen atom, halogen atoms, lower alkyl groups, trifluoromethyl group, alkoxy groups, hydroxy group, and cyano group, R.sup.1 is one member selected from the class consisting of hydrogen atom, methyl group, and ethyl group, n is an integer in the range of from 0 to 2, and Y is ##STR2## wherein R.sup.2 is hydrogen atom or n-propyl group and m is an integer in the range of from 1 to 5, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: January 12, 1993
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Azuma Igarashi, Sachiko Maeda, Yasuhiro Hirakawa, Katsuyoshi Sugisaki, Shinji Ozawa