Patents by Inventor Nobutaka Demura

Nobutaka Demura 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).

  • Anti-dementia agents
    Patent number: 5023244
    Abstract: An anti-dementia agent comprising as an active ingredient an adenosine derivative is disclosed. The anti-dementia agent is useful in the therapy of various types of dementia, especially senile dementia. Examples of the adenosine derivative include L-N.sup.6 -phenylisopropyl-adenosine, 2-chloroadenosine, N.sup.6 -cyclohexyladenosine, adenosine-5'-(N-cyclopropyl)carboxamide.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: June 11, 1991
    Assignee: Hoechst Japan Limited
    Inventors: Masayoshi Goto, Nobutaka Demura, Tsutomu Osaki
  • Therapeutic agent for memory disturbance
    Patent number: 4719212
    Abstract: A therapeutic agent for memory disturbance containing 1,2,3,6-tetrahydro-3-methyl-1-(5-oxohexyl)-7-propyl-purine-2,6-dione as its active ingredient and a method for treating a patient suffering from memory disturbance with such a therapeutic agent.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: January 12, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Masayoshi Goto, Nobutaka Demura, Takashi Sakaguchi