Patents by Inventor Masahide Asano

Masahide Asano 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).

  • Tyrosine derivatives and process for preparing the same
    Patent number: 4057629
    Abstract: Compounds having the formula: ##STR1## wherein R.sub.1 is phenyl or cycloalkyl and the phenyl may have at least one substituent selected from the group consisting of lower alkyl, lower alkoxy, amino and nitro; R.sub.2 is hydrogen or lower alkyl; A is --CH.sub.2 O-- or --CH.sub.2 CH(O-lower alkyl)-; n is zero (0) or one (1); when R.sub.1 together with (A).sub.n is unsubstituted phenyl, R.sub.2 is lower alkyl; and R.sub.3 is hydrogen or lower alkoxy, have anti-ulcerousaction.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: November 8, 1977
    Assignee: Daiichi Seiyaku Co., Ltd.
    Inventors: Tosaku Miki, Yasuhiro Hosokawa, Tamotsu Miwa, Hiroshi Fujita, Masahide Asano, Shunzo Aibara
  • Tyrosine derivatives and use
    Patent number: 4025644
    Abstract: Compounds having the formula: ##STR1## wherein R.sub.1 is phenyl or cycloalkyl and the phenyl may have at least one substituent selected from the group consisting of lower alkyl, lower alkoxy, amino and nitro; R.sub.2 is hydrogen or lower alkyl; A is --CH.sub.2 O-- or --CH.sub.2 CH(O-lower alkyl)-; n is zero or 1 when R.sub.1 together with (A).sub.n is unsubstituted phenyl, R.sub.2 is lower alkyl; and R.sub.3 is hydrogen or lower alkoxy, have anti-ulcerousaction.
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: May 24, 1977
    Assignee: Daiichi Seiyaku Co., Ltd.
    Inventors: Tosaku Miki, Yasuhiro Hosokawa, Tamotsu Miwa, Hiroshi Fujita, Masahide Asano, Shunzo Aibara