Patents by Inventor Motoyoshi Ohsugi

Motoyoshi Ohsugi 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).

  • 1-Aminomethyltricyclo[4.3.1.1.sup.2,5 ]undecane and acid-addition salts thereof
    Patent number: 4229375
    Abstract: 1-Aminomethyltricyclo[4.3.1.1.sup.2,5 ]undecane having the formula (I) and acid-addition salts thereof possess an excellent inhibitory effect on the growth of viruses even at a low concentration.
    Type: Grant
    Filed: February 28, 1979
    Date of Patent: October 21, 1980
    Assignee: Kao Soap Company, Limited
    Inventors: Koji Aigami, Yoshiaki Inamoto, Motoyoshi Ohsugi, Yoshiaki Fujikura, Naotake Takaishi
  • Tricyclo[4.3.1.1.sup.2,5 ]undecane-1-carboxylic acid and derivatives thereof and a process for producing the same
    Patent number: 4169953
    Abstract: Tricyclo[4.3.1.1.sup.2,5 ]undecane-1-carboxylic acid and acid halides and esters thereof having the formula (I), ##STR1## wherein Y represents a hydroxy group, a chlorine or bromine atom, or an alkoxy group of the formula RO- wherein R is a straight-chain, branched-chain or cyclic alkyl group having 1 to 12 carbon atoms, include compounds which exhibit superior antiviral action.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: October 2, 1979
    Assignee: Kao Soap Co., Ltd.
    Inventors: Koji Aigami, Yoshiaki Inamoto, Motoyoshi Ohsugi, Yoshiaki Fujikura, Naotake Takaishi
  • 1-Halogenotricyclo [4.3.1.1.sup.2,5 ] undecane and process for the preparation thereof
    Patent number: 4120906
    Abstract: 1-Halogenotricyclo [4.3.1.1.sup.2,5 ] undecanes are prepared by reacting tricyclo [4.3.1.1.sup.2,5 ] undecane with bromine or by reacting tricyclo [4.3.1.1.sup.2,5 ] undecane-1-ol with thionyl halide. The compounds are useful intermediates for preparing 1-aminotricyclo [4.3.1.1.sup.2,5 ] undecane hydrochloride which has antiviral activity.
    Type: Grant
    Filed: September 15, 1977
    Date of Patent: October 17, 1978
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Koji Aigami, Motoyoshi Ohsugi, Hiroshi Ikeda, Yoshiaki Fujikura
  • 1-Acetylaminotricyclo [4.3.1.1.sup.2,5 ] undecane and process for the preparation thereof
    Patent number: 4111990
    Abstract: 1-Acetylaminotricyclo [4.3.1.1.sup.2,5 ] undecane is prepared by reacting either (a) 1-substituted tricyclo [4.3.1.1.sup.2,5 ] undecane, wherein the substituent is Cl, Br or OH, or (b) endo-2-hydroxymethyl-exo-2,3-trimethylenenorbornane with acetonitrile, in the presence of sulfuric acid. 1-Acetylaminotricyclo [4.3.1.1.sup.2,5 ] undecane is useful as an intermediate to prepare antiviral substances.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: September 5, 1978
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Koji Aigami, Motoyoshi Ohsugi, Yoshiaki Fujikura, Hiroshi Ikeda
  • 1-Aminotricyclo (4.3.1.1.sup.2,5) undecane and salts thereof
    Patent number: 4104305
    Abstract: 1-Amino-tricyclo [4.3.1.1.sup.2,5 ] undecane is prepared by alkaline hydrolysis of 1-acetylamino-tricyclo [4.3.1.1.sup.2,5 ] undecane, and its acid addition salts are prepared by neutralizing it with an acid. The compounds possess antiviral activity.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: August 1, 1978
    Assignee: Kao Soap Co., Ltd.
    Inventors: Yoshiaki Inamoto, Koji Aigami, Motoyoshi Ohsugi, Yoshiaki Fujikura, Hiroshi Ikeda