Patents by Inventor Fumitaka Ito

Fumitaka Ito 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).

  • 4,5,6,7-trisubstituted benzoxazolones
    Patent number: 5071863
    Abstract: Certain 6-aryl- or 6-heteroaryl- alkylaminobenzoxazolones, and their pharmaceutically-acceptable salts, are dual inhibitors of lipoxygenase and cyclooxygenase enzymes, and so are useful as antiallergy and antiinflammatory agents.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: December 10, 1991
    Assignee: Pfizer Inc.
    Inventors: Fumitaka Ito, Takashi Mano, Masami Nakane
  • Antiallergy and antiinflammatory agents, compositions and use
    Patent number: 5036088
    Abstract: Compounds of the formula ##STR1## where Y is alkyl, aryl or heterocyclic, n is 1-7, R is hydrogen, alkyl, aralkyl or carboxymethyl, R.sub.1 is acetoxy, thiophenoxy, hydrogen, halo, alkyl, alkoxy or trifluoromethyl, R.sub.2 is hydrogen, alkyl or alkanoyl and X is C.dbd.O, CH.sub.2, NH, O or S as antiallergy and antiinflammatory agents.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: July 30, 1991
    Assignee: Pfizer Inc.
    Inventors: Yoshihiko Kitaura, Fumitaka Ito, Rodney W. Stevens, Nobuko Asai
  • Antiallergy and antiinflammatory agents
    Patent number: 5006541
    Abstract: Compounds of the formula ##STR1## where Y is alkyl, aryl or heterocyclic, n is 1-7, R is hydrogen, alkyl, aralkyl or carboxymethyl, R.sub.1 is acetoxy, thiophenoxy, hydrogen, halo, alkyl, alkoxy or trifluoromethyl, R.sub.2 is hydrogen, alkyl or alkanoyl and X is C.dbd.O, CH.sub.2, NH, O or S as antiallergy and antiinflammatory agents.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: April 9, 1991
    Assignee: Pfizer Inc.
    Inventors: Yoshihiko Kitaura, Fumitaka Ito, Rodney W. Stevens, Nobuko Asai
  • Antiallergy and antiinflammatory agents
    Patent number: 4904685
    Abstract: Compounds of the formula ##STR1## where Y is alkyl, aryl or heterocyclic, n is 1-7, R is hydrogen, alkyl, aralkyl or carboxymethyl, R.sub.1 is acetoxy, thiophenoxy, hydrogen, halo, alkyl, alkoxy or trifluoromethyl, R.sub.2 is hydrogen, alkyl or alkanoyl and X is C.dbd.O, CH.sub.2, NH, O or S as antiallergy and antiinflammatory agents.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: February 27, 1990
    Assignee: Pfizer Inc.
    Inventors: Yoshihiko Kitaura, Fumitaka Ito, Rodney W. Stevens, Nobuko Asai
  • Antiallergy and antiinflammatory agents
    Patent number: 4835166
    Abstract: Compounds of the formula ##STR1## where Y is alkyl, aryl or heterocyclic, n is 1-7, R is hydrogen, alkyl, aralkyl or carboxymethyl, R.sub.1 is acetoxy, thiophenoxy, hydrogen, halo, alkyl, alkoxy or trifluoromethyl, R.sub.2 is hydrogen, alkyl or alkanoyl and X is C.dbd.O, CH.sub.2, NH, O or S as antiallergy and antiinflammatory agents.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: May 30, 1989
    Assignee: Pfizer Inc.
    Inventors: Yoshihiko Kitaura, Fumitaka Ito, Rodney W. Stevens, Nobuko Asai
  • Synthesis of indolizidines related to the carditonic pumiliotoxin a alkaloids
    Patent number: 4675325
    Abstract: A method of making dendrobatid alkaloids with the formula ##STR1## in which A is either CH.sub.3 or H, and n is an integer from 1-9, and R is CH.sub.2 OH, CHO, ##STR2## and R.sub.1 and R.sub.2 are alkyl groups; and the use of such alkaloids to treat cardiovascular illness.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: June 23, 1987
    Assignee: The Regents of the University of California
    Inventors: Larry E. Overman, Fumitaka Ito
  • Television receiver
    Patent number: D274190
    Type: Grant
    Filed: August 26, 1981
    Date of Patent: June 5, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Fumitaka Ito, Yasusuke Seki, Kazuyuki Tsuburaya