Patents by Inventor Takehiro Koyasu

Takehiro Koyasu 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: 7546818
    Abstract: To increase the wind volume of the cooling wind flowing through a radiator and to enhance the cooling performance of the radiator by providing a wind exhaust duct using a crankcase of an internal combustion engine. A cooling device of the internal combustion engine includes a radiator arranged lateral to crankcases. A wind exhaust duct exhausts the cooling wind passed through the radiator to the atmosphere. The wind exhaust duct is extends along a rotational axis of the crankshaft at the upper portion of the crankcases and the upper portion of the transmission case.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: June 16, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shuji Hirayama, Masato Takamuro, Yuichiro Morikawa, Masashi Kanezuka, Takehiro Koyasu
  • Publication number: 20080066698
    Abstract: To increase the wind volume of the cooling wind flowing through a radiator and to enhance the cooling performance of the radiator by providing a wind exhaust duct using a crankcase of an internal combustion engine. A cooling device of the internal combustion engine includes a radiator arranged lateral to crankcases. A wind exhaust duct exhausts the cooling wind passed through the radiator to the atmosphere. The wind exhaust duct is extends along a rotational axis of the crankshaft at the upper portion of the crankcases and the upper portion of the transmission case.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 20, 2008
    Inventors: Shuji Hirayama, Masato Takamuro, Yuichiro Morikawa, Masashi Kanezuka, Takehiro Koyasu