Patents by Inventor Yoshiteru Kubo

Yoshiteru Kubo 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: 7730647
    Abstract: An object of the present invention is to provide a construction machine which precipitates the removal of earth that is churned up onto a vehicle body from the vehicle body, which reduces transfer loads on a blade bracket, which improves the attachability of the blade bracket, and which achieves standardization of the blade bracket. The construction machine according to the present invention is constituted such that a frame of a crawler belt-type traveling body comprises a center frame, a pair of truck frames disposed on the outside of two side portions of the center frame, a connecting member which connects the center frame to the truck frames, and a blade bracket which is joined to the center frame and the connecting member.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 8, 2010
    Assignee: Komatsu Utility Co., Ltd.
    Inventors: Yoshiteru Kubo, Sachio Shimizu, Shinichi Senba, Hiroyuki Takayama, Kouhei Urase, Takaharu Nishimura
  • Patent number: 7204519
    Abstract: A construction machine where an operating load is transferred to a location having good rigidity, thereby ensuring the strength of a vehicle body and increasing the load-withstanding strength in relation to running loads. The frame of the lower traveling body of the construction machine comprising a hollow center frame having an upper plate with an attachment ring, a lower plate, and side plates that surrounding sides of the frame and that jut out from the attachment ring, and reinforcing ribs which connect the upper plate to the lower plate in the interior of the center frame beneath the attachment ring.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: April 17, 2007
    Assignees: Komatsu Ltd., Komatsu Zenoah Co., Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoshiteru Kubo, Kenichi Shimizu, Shinichi Senba, Kouhei Urase, Takaharu Nishimura
  • Patent number: 7204518
    Abstract: A construction machine where a load acting on a vehicle body during an operation is transferred to ensure the strength of the vehicle body, thereby improving reliability including welding reliability. In the construction machine, at least one of the height differences between an upper face or a lower face of the center frame at a joining portion between the center frame and the connecting member and an upper face or a lower face of a center joining portion of the connecting member is set respectively at a dimension that is approximately equal to or less than the thickness of an upper face plate or a lower face plate of the center frame.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: April 17, 2007
    Assignees: Komatsu Ltd., Komatsu Zenoah Co., Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoshiteru Kubo, Shinichi Senba, Jun Noguchi, Kouhei Urase, Takaharu Nishimura
  • Publication number: 20040244231
    Abstract: An object of the present invention is to provide a construction machine in which an operating load is transferred to a location having good rigidity, thereby securing the strength of a vehicle body, and which is also capable of realizing an increase in the load-withstanding strength in relation to running loads, thereby improving reliability.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 9, 2004
    Inventors: Yoshiteru Kubo, Kenichi Shimizu, Shinichi Senba, Kouhei Urase, Takaharu Nishimura
  • Publication number: 20040244230
    Abstract: An object of the present invention is to provide a construction machine which precipitates the removal of earth that is churned up onto a vehicle body from the vehicle body, which reduces transfer loads on a blade bracket, which improves the attachability of the blade bracket, and which achieves standardization of the blade bracket. The construction machine according to the present invention is constituted such that a frame of a crawler belt-type traveling body comprises a center frame, a pair of truck frames disposed on the outside of two side portions of the center frame, a connecting member which connects the center frame to the truck frames, and a blade bracket which is joined to the center frame and the connecting member.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 9, 2004
    Inventors: Yoshiteru Kubo, Sachio Shimizu, Shinichi Senba, Hiroyuki Takayama, Kouhei Urase, Takaharu Nishimura
  • Publication number: 20040232687
    Abstract: An object of the present invention is to provide a construction machine in which a load acting on a vehicle body during an operation is transferred appropriately, thereby ensuring the strength of the vehicle body and improving reliability, and in which welding reliability can also be improved.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 25, 2004
    Inventors: Yoshiteru Kubo, Shinichi Senba, Jun Noguchi, Kouhei Urase, Takaharu Nishimura
  • Patent number: D583834
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: December 30, 2008
    Assignees: Komatsu Ltd., Komatsu Utility Co., Ltd.
    Inventors: Kiyoshi Sugiyama, Takenobu Andou, Takeshi Endou, Kazuhisa Satou, Yoshiteru Kubo, Hayato Kinoshita, Osamu Kitajima
  • Patent number: D583835
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: December 30, 2008
    Assignees: Komatsu Ltd., Komatsu Utility Co., Ltd.
    Inventors: Kiyoshi Sugiyama, Takenobu Andou, Takeshi Endou, Kazuhisa Satou, Yoshiteru Kubo, Hayato Kinoshita, Osamu Kitajima