Patents by Inventor Mitsuo Egawa

Mitsuo Egawa 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).

  • Remedy and preventive for nervous system disorders
    Patent number: 5952337
    Abstract: An agent comprising a 4-aminoacyltetrahydrofuro?2,3-b!quinoline derivative represented by formula (I): ##STR1## (wherein R.sup.1 represents an alkyl group having 2 to 6 carbon atoms, etc.) or an acid addition salt or a hydrate or a solvent of them as an active ingredient. The compound has a protecting action against neuronal cell death and is useful as a therapeutic or prophylactic agent for cerebrovascular diseases, traumatic head injuries or postencephalitis.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: September 14, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ken-Ichi Saito, Tomoko Bessho, Satoshi Yuki, Haruyuki Chaki, Mitsuo Egawa
  • Optically active alkylenedioxybenzene derivatives and their use in therapy
    Patent number: 5234948
    Abstract: Optically active alkylenedioxybenzene derivatives of the formula: ##STR1## wherein m is an integer of 2-5, and n is an integer of 1-3, and acid addition salts thereof. A pharmaceutical composition containing a compound (I) or racemate, and a method of treating anxiety in a warm-blooded animal by administering the above compound (I) to said animal are also provided.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: August 10, 1993
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Heitaro Iwata, Akemichi Baba, Toshio Matsuda, Mitsuo Egawa, Akihiro Tobe, Kenichi Saito
  • Optically active alkylenedioxybenzene derivatives and their use in therapy
    Patent number: 5168099
    Abstract: Optically active alkylenedioxybenzene derivatives of the formula: ##STR1## wherein m is an integer of 2-5, and n is an integer of 1-3, and acid addition salts thereof. A pharmaceutical composition containing a compound (I) or racemate, and a method of treating anxiety in a warm-blooded animal by administering the above compound (I) to said animal are also provided.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: December 1, 1992
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Heitaro Iwata, Akemichi Baba, Toshio Matsuda, Mitsuo Egawa, Akihiro Tobe, Kenichi Saito
  • Thieno[2,3-d]pyrimidine derivatives and salts thereof
    Patent number: 4695568
    Abstract: This invention relates novel thieno[2,3-d]pyrimidine derivatives represented by the following general formula (I): ##STR1## or salts thereof; wherein R.sup.1 and R.sup.2 independently represent hydrogen, halogen or alkyl group having 1 to 6 carbon atoms; or R.sup.1 and R.sup.2 may concatenate to form a cycloalkylene group having 5 or 6 ring carbon atoms; R.sup.3 and R.sup.4 independently represent hydrogen or alkyl group having 1 to 6 carbon atoms; R.sup.5 represents a member selected from(1) hydrogen or alkyl having 1 to 6 carbon atoms,(2) ##STR2## in which m is an integer of from 1 to 3 and X represents halogen, or (3) ##STR3## in which R.sup.6 represents alkyl group having 1 to 6 carbon atoms; Ar represents substituted or unsubstituted phenyl, or 2- or 3-thienyl group; and n is 2 or 3. The derivatives of the invention can be used in the treatment of the various depression disease or the higher dysfunction of the brain.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: September 22, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Kunihiro Ninomiya, Issei Nitta, Akihiro Tobe, Mitsuo Egawa, Ryoji Kikumoto
  • Piperazinylalkoxyindanes and acid addition salts thereof
    Patent number: 4339580
    Abstract: Piperazinylalkoxyindanes and their pharmaceutically acceptable acid addition salts which have anti-anxiety activity and are effective as sedatives.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: July 13, 1982
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Mitsuo Egawa
  • Pharmaceutically active 2-(4-aminobutoxy)stilbenes
    Patent number: 4310534
    Abstract: 2-(4-aminobutoxy)stilbenes are prepared and found useful as pharmaceutical agents, particularly as anticonvulsants and skeletal muscle relaxants.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: January 12, 1982
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Mitsuo Egawa, Kunihiro Ninomiya
  • Pharmaceutically active 2-(4-aminobutoxy)stilbenes
    Patent number: 4284637
    Abstract: 2-(4-aminobutoxy)stilbenes are prepared and found useful as pharmaceutical agents, particularly as anticonvulsants and skeletal muscle relaxants.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: August 18, 1981
    Assignee: Mitsubishi Chemical Ind., Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Kunihiro Ninomiya, Mitsuo Egawa
  • Pharmaceutically active 2-(4-aminobutoxy)stilbenes
    Patent number: 4217366
    Abstract: 2-(4-aminobutoxy)stilbenes are prepared and found useful as pharmaceutical agents, particularly as anticonvulsants and skeletal muscle relaxants.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: August 12, 1980
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Kunihiro Ninomiya, Mitsuo Egawa