Patents by Inventor Shigeo Sekiya

Shigeo Sekiya 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).

  • Construction vehicle equipped with exhaust aftertreatment device
    Patent number: 8985262
    Abstract: A construction vehicle adapted to travel using a wheel and equipped with an exhaust aftertreatment device to which a reductant is supplied is provided. At least a portion of the exhaust aftertreatment device including a front end thereof is located on a fender provided for the wheel. A supply pump adapted to supply the reductant and a reductant tank adapted to store the reductant are located ahead of the fender and below the exhaust aftertreatment device. The reductant tank is located below the supply pump.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 24, 2015
    Assignee: Komatsu Ltd.
    Inventors: Shigeo Sekiya, Ryousuke Maeda, Muneo Harada
  • Dump truck
    Patent number: 8820468
    Abstract: A dump truck includes a cab being located behind an engine compartment in which an engine is enclosed, a body being located behind the cab, and an exhaust aftertreatment device being adapted to purify an exhaust gas from the engine. The exhaust aftertreatment device includes a DPF device being adapted to capture a particulate matter in the exhaust gas and being located on a top of a fender provided alongside the cab, an SCR device being adapted to purify a nitrogen oxide in the exhaust gas and being located between the cab and the body, and a communication pipe through which the DPF device and the SCR device are in communication with each other.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 2, 2014
    Assignee: Komatsu Ltd.
    Inventor: Shigeo Sekiya
  • Dump Truck
    Publication number: 20140182963
    Abstract: A dump truck includes a cab being located behind an engine compartment in which an engine is enclosed, a body being located behind the cab, and an exhaust aftertreatment device being adapted to purify an exhaust gas from the engine. The exhaust aftertreatment device includes a DPF device being adapted to capture a particulate matter in the exhaust gas and being located on a top of a fender provided alongside the cab, an SCR device being adapted to purify a nitrogen oxide in the exhaust gas and being located between the cab and the body, and a communication pipe through which the DPF device and the SCR device are in communication with each other.
    Type: Application
    Filed: June 20, 2013
    Publication date: July 3, 2014
    Inventor: Shigeo Sekiya
  • Construction Vehicle Equipped with Exhaust Aftertreatment Device
    Publication number: 20140124284
    Abstract: A construction vehicle adapted to travel using a wheel and equipped with an exhaust aftertreatment device to which a reductant is supplied is provided. At least a portion of the exhaust aftertreatment device including a front end thereof is located on a fender provided for the wheel. A supply pump adapted to supply the reductant and a reductant tank adapted to store the reductant are located ahead of the fender and below the exhaust aftertreatment device. The reductant tank is located below the supply pump.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 8, 2014
    Applicant: Komatsu Ltd.
    Inventors: Shigeo Sekiya, Ryousuke Maeda, Muneo Harada