Patents by Inventor Kazunari Hirata

Kazunari Hirata 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).

  • Electric power applying circuit and test apparatus
    Patent number: 7482829
    Abstract: There is provided an electric power applying circuit for applying a direct current power to a load.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 27, 2009
    Assignee: Advantest Corporation
    Inventors: Kazunari Hirata, Tadaaki Satoh, Masahiro Nagata
  • ELECTRIC POWER APPLYING CIRCUIT AND TEST APPARATUS
    Publication number: 20070252571
    Abstract: There is provided an electric power applying circuit for applying a direct current power to a load.
    Type: Application
    Filed: March 8, 2007
    Publication date: November 1, 2007
    Applicant: ADVANTEST CORPORATION
    Inventors: KAZUNARI HIRATA, TADAAKI SATOH, MASAHIRO NAGATA
  • 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
  • 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
  • Piston head block for internal combustion engine
    Patent number: 5067393
    Abstract: A piston head block is provided with smaller exernal diameter at the portion where a cut-out for receiving a lubricant injection nozzle that remaining portion. With the smaller diameter, a clearance or gap is formed between the internal surface of an engine cylinder and the external surface of the smaller diameter portion. Therefore, during piston stroke, the smaller diameter portion, in which the lubricant injection nozzle receptacle cut-out is formed, becomes free from the transverse stress.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: November 26, 1991
    Assignee: Atsugi Motor Parts Company Limited
    Inventors: Isamu Kawasaki, Kazunari Hirata