Patents by Inventor Yasuo Ooshima

Yasuo Ooshima 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: 8925663
    Abstract: An upper revolving structure is provided with a revolving frame, a floor member, and a cab box. On this, an indoor unit for an air conditioner is provided on the floor member, and an outdoor air inlet port is provided by being opened to the outside of the cab box. An outdoor air duct is provided for supplying outdoor air introduced through the outdoor air inlet port toward the indoor unit. In this duct, an intermediate portion is arranged at a high position on the side of an operator's seat, and on this intermediate portion, a filter accommodating portion is provided by being opened into the cab box. In the filter accommodating portion, an outdoor air filter for trapping dusts in the outdoor air flowing through the outdoor air duct is accommodated capable of being attached and removed.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hiroshi Tabeta, Shogo Kimura, Yasuo Ooshima
  • Publication number: 20130302125
    Abstract: An upper revolving structure is provided with a revolving frame, a floor member, and a cab box. On this, an indoor unit for an air conditioner is provided on the floor member, and an outdoor air inlet port is provided by being opened to the outside of the cab box. An outdoor air duct is provided for supplying outdoor air introduced through the outdoor air inlet port toward the indoor unit. In this duct, an intermediate portion is arranged at a high position on the side of an operator's seat, and on this intermediate portion, a filter accommodating portion is provided by being opened into the cab box. In the filter accommodating portion, an outdoor air filter for trapping dusts in the outdoor air flowing through the outdoor air duct is accommodated capable of being attached and removed.
    Type: Application
    Filed: January 17, 2012
    Publication date: November 14, 2013
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Hiroshi Tabeta, Shogo Kimura, Yasuo Ooshima
  • Patent number: D685006
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 25, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Shogo Kimura, Tomoyuki Tanaka, Hiroshi Tabeta, Yasuo Ooshima
  • Patent number: D689529
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: September 10, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Shogo Kimura, Tomoyuki Tanaka, Hiroshi Tabeta, Yasuo Ooshima, Hiroki Tanaka