Patents by Inventor Mutsuko Maekawa

Mutsuko Maekawa 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).

  • Agent for potentiating nerve growth factor activity containing 1,2-ethanediol derivative or salt thereof
    Patent number: 6103754
    Abstract: A 1,2-ethanediol derivative represented by the general formula [I] or its salt: ##STR1## has a NGF activity-potentiating effect and is useful as a remedy for various diseases caused by degeneration of central nervous system or peripheral nervous system such as senile dementia of Alzheimer type, Huntington's chorea, various neuropathies, Riley-Day syndrome, traumatic nerve injury, amyotrophic lateral sclerosis (ALS) and the like.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: August 15, 2000
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Mutsuko Maekawa, Kazunari Hirata, Hirokazu Narita
  • Agent for potentiating nerve growth factor activity containing 1,2-ethanediol derivative or salt thereof
    Patent number: 6034119
    Abstract: A 1,2-ethanediol derivative represented by the general formula [I] or its salt: ##STR1## has a NGF activity-potentiating effect and is useful as a remedy for various diseases caused by degeneration of central nervous system or peripheral nervous system such as senile dementia of Alzheimer type, Huntington's chorea, various neuropathies, Riley-Day syndrome, traumatic nerve injury, amyotrophic lateral sclerosis (ALS) and the like.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: March 7, 2000
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Mutsuko Maekawa, Kazunari Hirata, Hirokazu Narita
  • Agent for potentiating nerve growth factor activity containing 1,2-ethanediol derivative or salt thereof
    Patent number: 5968935
    Abstract: A 1,2-ethanediol derivative represented by the general formula [I] or its salt: ##STR1## has a NGF activity-potentiating effect and is useful as a remedy for various diseases caused by degeneration of central nervous system or peripheral nervous system such as senile dementia of Alzheimer type, Huntington's chorea, various neuropathies, Riley-Day syndrome, traumatic nerve injury, amyotrophic lateral sclerosis (ALS) and the like.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: October 19, 1999
    Assignee: Toyama Chemical Co.., Ltd.
    Inventors: Satoshi Ono, Mutsuko Maekawa, Kazunari Hirata, Hirokazu Narita
  • Agent for potentiating nerve growth factor activity containing 1,2-ethanediol derivative or salt thereof
    Patent number: 5932620
    Abstract: A 1,2-ethanediol derivative represented by the general formula ?I! or its salt: ##STR1## has a NGF activity-potentiating effect and is useful as a remedy for various diseases caused by degeneration of central nervous system or peripheral nervous system such as senile dementia of Alzheimer type, Huntington's chorea, various neuropathies, Riley-Day syndrome, traumatic nerve injury, amyotrophic lateral sclerosis (ALS) and the like.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: August 3, 1999
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Mutsuko Maekawa, Kazunari Hirata, Hirokazu Narita
  • Agent for potentiating nerve growth factor activity containing 1,2-ethanediol derivative or salt thereof
    Patent number: 5922721
    Abstract: A 1,2-ethanediol derivative represented by the general formula ?I! or its salt: ##STR1## has a NGF activity-potentiating effect and is useful as a remedy for various diseases caused by degeneration of central nervous system or peripheral nervous system such as senile dementia of Alzheimer type, Huntington's chorea, various neuropathies, Riley-Day syndrome, traumatic nerve injury, amyotrophic lateral sclerosis (ALS) and the like.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: July 13, 1999
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Mutsuko Maekawa, Kazunari Hirata, Hirokazu Narita
  • 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same
    Patent number: 5872117
    Abstract: This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebrovascular dementia, senile dementia, Alzheimer's dementia, sequelae of ischemic encephalopathy and cerebral apoplexy.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: February 16, 1999
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Yozo Todo, Hirokazu Narita
  • Agent for potentiating nerve growth factor activity containing 1,2-ethanediol derivative or salt thereof
    Patent number: 5807887
    Abstract: A 1,2-ethanediol derivative represented by the general formula ?I! or its salt: ##STR1## has a NGF activity-potentiating effect and is useful as a remedy for various diseases caused by degeneration of central nervous system or peripheral nervous system such as senile dementia of Alzheimer type, Huntington's chorea, various neuropathies, Riley-Day syndrome, traumatic nerve injury, amyotrophic lateral sclerosis (ALS) and the like.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: September 15, 1998
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Mutsuko Maekawa, Kazunari Hirata, Hirokazu Narita
  • 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same
    Patent number: 5719150
    Abstract: This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebrovascular dementia, senile dementia, Alzheimer's dementia, sequelae of ischemic encephalopathy and cerebral apoplexy.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: February 17, 1998
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Yozo Todo, Hirokazu Narita
  • 1,2-ethanediol derivative and salt thereof and cerebral function-improving agent comprising the same
    Patent number: 5658904
    Abstract: This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebrovascular dementia, senile dementia, Alzheimer's dementia, sequelae of ischemic encephalopathy and cerebral apoplexy.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 19, 1997
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Yozo Todo, Hirokazu Narita
  • 1,2-ethanediol derivative and salt thereof process for producing the same, and cerebral function-improving agent comprising the same
    Patent number: 5612381
    Abstract: This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebrovascular dementia, senile dementia, Alzheimer's dementia, sequelae of ischemic encephalopathy and cerebral apoplexy.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 18, 1997
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Yozo Todo, Hirokazu Narita
  • 1,2-ethanediol derivative and salt thereof and cerebral function-improving agent comprising the same
    Patent number: 5472984
    Abstract: This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebrovascular dementia, senile dementia, Alzheimer's dementia, sequelae of ischemic encephalopathy and cerebral apoplexy.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: December 5, 1995
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Yozo Todo, Hirokazu Narita
  • 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same
    Patent number: 5280032
    Abstract: This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebrovascular dementia, senile dementia, Alzheimer's dementia, sequelae of ischemic encephalopathy and cerebral apoplexy.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: January 18, 1994
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Satoshi Ono, Tetsuo Yamafuji, Hisaaki Chaki, Mutsuko Maekawa, Yozo Todo, Hirokazu Narita