Patents by Inventor Junji Irisawa

Junji Irisawa 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).

  • Novel aminoglycoside derivatives
    Patent number: 4200628
    Abstract: Novel aminoglycoside derivatives and their salts containing 2-deoxystreptamine moiety, of which the 1-amino group is acylated by a group represented by the formula: ##STR1## (wherein R is 4 to 6 membered heterocyclic group containing 1 to 2 nitrogen atoms which may optionally be substituted.) effective in treatment of infectious diseases caused by gram positive and gram negative bacteria.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: April 29, 1980
    Assignee: Shionogi & Co., Ltd.
    Inventors: Kikuo Igarashi, Junji Irisawa, Tsunetoshi Honma
  • 1-N-Hetero containing aminoglycoside derivatives
    Patent number: 4199570
    Abstract: Novel aminoglycoside derivatives and their salts containing 2-deoxystreptamine moiety, of which the 1-amino group is acylated by a group represented by the formula: ##STR1## wherein R is hydrogen, lower alkyl, aralkyl, or aralkoxycarbonyl; andn is an integer of 1 or 3,effective in treatment and prevention of infectious diseases caused by gram positive and gram negative bacteria.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: April 22, 1980
    Assignee: Shionogi & Co., Ltd.
    Inventors: Kikuo Igarashi, Junji Irisawa