Patents by Inventor Masaki Kanahara

Masaki Kanahara 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).

  • Engine cooling apparatus
    Patent number: 6220207
    Abstract: In an engine cooling system which includes an intercooler for precooling combustion air supplied to an engine, an oil cooler for cooling a hydraulic working fluid for use in a hydraulic excavator, a radiator for cooling cooling water supplied to the engine, a cooling fan in the form of a centrifugal fan, and a suction duct for introducing the cooling air to the suction side of the cooling fan, an opening diameter of a suction duct downstream end is smaller than an opening diameter of a rotary shroud suction-side end, and the suction duct downstream end is positioned inside the rotary shroud suction-side end in overlapped relation.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: April 24, 2001
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Koji Kawasaki, Shigehisa Funabashi, Zenji Kaneko, Masaki Kanahara, Koji Tahara
  • Hydraulic excavator
    Patent number: D437602
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: February 13, 2001
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kazuhiko Hiraoka, Shingo Hirose, Kazuhiko Nishiyama, Akitaka Takeuchi, Yoshiki Yoshida, Toichi Hirata, Masaki Kanahara, Tsuyoshi Sakyo, Yasushi Konomura, Koji Tahara, Kazuhisa Tamura