Patents by Inventor Yuuichi Todokoro

Yuuichi Todokoro 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: 9624649
    Abstract: A lower traveling structure (2) having front wheels (16) and rear wheels (17) provided on a chassis (12) extending in a front and rear direction, an upper revolving structure (4) rotatably mounted on the chassis (12), and a working mechanism (11) provided on a front side of the upper revolving structure (4) and at an intermediate position in a left and right direction are provided. On the other hand, a towing through hole (14J, 14K) bored through an upper side position on both left and right sides and in a front and rear direction and used for mounting a cable in towing is provided on a front attachment mounting plate (14) provided on a front side position of the chassis (12) constituting the upper revolving structure (4).
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: April 18, 2017
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Makoto Oota, Hiroshi Tsukui, Yuuichi Todokoro
  • Patent number: 9260836
    Abstract: An earthmoving apparatus includes an earthmoving blade (9) extending in the width direction of an undercarriage, a lifting unit (10) configured to move the earthmoving blade (9) up and down, and a cover unit (12) covering the lifting unit (10), wherein the earthmoving blade (9) can be moved by the lifting unit between a grounded position in which the earthmoving blade is in contact with the ground surface and a retracted position in which the earthmoving blade is held highest off the ground surface, while keeping a nearly vertical orientation with respect to the ground surface, the cover unit (12) includes a sub cover (27) extending from a location above the lifting unit (10) toward the earthmoving blade (9) and a main cover (28) slidable on the upper surface of the sub cover (27), the main cover (28) is pivotally attached to the earthmoving blade (9) in such a manner that one end portion of the main cover is nearly in contact with the top surface of the earthmoving blade, and when the earthmoving blade (9) i
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: February 16, 2016
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Akira Nakata, Hiroshi Tsukui, Makoto Oota, Yuuichi Todokoro, Tomokatsu Tomiyama
  • Publication number: 20150240457
    Abstract: A lower traveling structure (2) having front wheels (16) and rear wheels (17) provided on a chassis (12) extending in a front and rear direction, an upper revolving structure (4) rotatably mounted on the chassis (12), and a working mechanism (11) provided on a front side of the upper revolving structure (4) and at an intermediate position in a left and right direction are provided. On the other hand, a towing through hole (14J, 14K) bored through an upper side position on both left and right sides and in a front and rear direction and used for mounting a cable in towing is provided on a front attachment mounting plate (14) provided on a front side position of the chassis (12) constituting the upper revolving structure (4).
    Type: Application
    Filed: October 9, 2013
    Publication date: August 27, 2015
    Inventors: Makoto Oota, Hiroshi Tsukui, Yuuichi Todokoro
  • Publication number: 20140318818
    Abstract: An earthmoving apparatus includes an earthmoving blade (9) extending in the width direction of an undercarriage, a lifting unit (10) configured to move the earthmoving blade (9) up and down, and a cover unit (12) covering the lifting unit (10), wherein the earthmoving blade (9) can be moved by the lifting unit between a grounded position in which the earthmoving blade is in contact with the ground surface and a retracted position in which the earthmoving blade is held highest off the ground surface, while keeping a nearly vertical orientation with respect to the ground surface, the cover unit (12) includes a sub cover (27) extending from a location above the lifting unit (10) toward the earthmoving blade (9) and a main cover (28) slidable on the upper surface of the sub cover (27), the main cover (28) is pivotally attached to the earthmoving blade (9) in such a manner that one end portion of the main cover is nearly in contact with the top surface of the earthmoving blade, and when the earthmoving blade (9) i
    Type: Application
    Filed: October 5, 2012
    Publication date: October 30, 2014
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Akira Nakata, Hiroshi Tsukui, Makoto Oota, Yuuichi Todokoro, Tomokatsu Tomiyama