Patents by Inventor Yasufumi Shirasaki

Yasufumi Shirasaki 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).

  • Patent number: 5837706
    Abstract: A drug containing a calmodulin inhibitor as an active ingredient is disclosed. This drug is useful in the suppression of neuronal cell death, in particular brain neuronal cell death, due to, for example, cerebral ischemia.Also, a drug containing a compound capable of inhibiting binding of calmodulin to a cytoskeltal protein as an active ingredient and a drug containing a compound suppressing the breakdown of a cytoskeltal protein as an active ingredient are disclosed.These drugs are useful in the treatment and prevention of various diseases in the brain and sequelae thereof as well as in the prevention of relapses of these diseases.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: November 17, 1998
    Assignee: Daiichi Pharmaceutical Co., Ltd.
    Inventors: Yasufumi Shirasaki, Hitoshi Yamaguchi
  • Patent number: 5661150
    Abstract: A drug containing a calmodulin inhibitor as an active ingredient is disclosed. This drug is useful in the suppression of neuronal cell death, in particular brain neuronal cell death, due to, for example, cerebral ischemia.Also, a drug containing a compound capable of inhibiting binding of calmodulin to a cytoskeltal protein as an active ingredient and a drug containing a compound suppressing the breakdown of a cytoskeltal protein as an active ingredient are disclosed.These drugs are useful in the treatment and prevention of various diseases in the brain and sequelae thereof as well as in the prevention of relapses of these diseases.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: August 26, 1997
    Assignee: Daiichi Pharmaceutical Co., Ltd.
    Inventors: Yasufumi Shirasaki, Hitoshi Yamaguchi
  • Patent number: 5182276
    Abstract: The present invention relates to a nootropic agent which comprises a derivative of 2-phenyl-3-oxo-2H-1,4-benzothiazine. This nootropic agent is effective for treating diseases accompanied by a lowering of cerebral functions, for instance, cerebral infarction disorders due to ischemia such as transitory cerebral ischemia, brain edema, cerebral disorders due to the after-effect such as cerebral hemorrhage, cerebral disorders due to traumatic injury such as bruise, central nervous degeneration and degenerative diseases such as dementia, mental disorders, neurosis and Alzheimer's diseases.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: January 26, 1993
    Assignees: Santen Pharmaceutical Co., Ltd., Daiichi Pharmaceutical Co., Ltd.
    Inventors: Yasufumi Shirasaki, Shinichiro Ashida