Patents by Inventor Kohei Urase

Kohei Urase 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).

  • Crawler frame for construction machine
    Patent number: 7293375
    Abstract: In a crawler frame in which legs in a center frame are formed from cast steel, a simple structure is achieved by reducing the number of components. To this end, the crawler frame, which has a center frame composed of a central frame section for supporting a swing bearing and legs located on the right and left sides of the central frame section; and track frames disposed on the sides of the distal ends of the legs, respectively, of the center frame, is designed such that each of the legs is bifurcated into front and rear leg sections and the front and rear leg sections are respectively formed from cast steel.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: November 13, 2007
    Assignees: Komatsu Ltd., Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Fukushima, Akio Ohta, Kohei Urase, Takaharu Nishimura
  • Crawler frame for construction machine
    Publication number: 20040177533
    Abstract: In a crawler frame in which legs in a center frame are formed from cast steel, a simple structure is achieved by reducing the number of components. To this end, the crawler frame, which has a center frame composed of a central frame section for supporting a swing bearing and legs located on the right and left sides of the central frame section; and track frames disposed on the sides of the distal ends of the legs, respectively, of the center frame, is designed such that each of the legs is bifurcated into front and rear leg sections and the front and rear leg sections are respectively formed from cast steel.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 16, 2004
    Applicants: KOMATSU LTD., HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Akira Fukushima, Akio Ohta, Kohei Urase, Takaharu Nishimura
  • Hydraulic excavator
    Patent number: D681689
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: May 7, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Tomoyuki Tanaka
  • Hydraulic excavator
    Patent number: D684599
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Tomoyuki Tanaka
  • Hydraulic excavator
    Patent number: D684600
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Tomoyuki Tanaka
  • Portion of a hydraulic excavator
    Patent number: D685009
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 25, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Yuuki Umizaki
  • Frame for a construction machine
    Patent number: D686252
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 16, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kohei Urase, Teruo Irino, Katsuhiro Sasaki, Yuuki Umizaki
  • Swing post for a construction machine
    Patent number: D686642
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 23, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kohei Urase, Katsuhiro Sasaki, Makoto Motozu, Yuuki Umizaki, Seiichi Kihara