Patents by Inventor Tomoji UTSUGI

Tomoji UTSUGI 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: 8720634
    Abstract: The invention is a working vehicle that has high practicality and a high degree of freedom of a turning operation. A lawn mowing vehicle includes a lawn mowing unit that includes drum wheels driven so as to rotate about an axis Ax1 extending in a vehicle width direction as a rotational center, a frame that is connected to the lawn mowing unit, and a steering drive device that is provided in the frame. The steering drive device includes a pair of steered wheels that is disposed in the vehicle width direction, steering units that can independently steer the pair of steered wheels respectively, and wheel driving units that can rotationally drive the pair of steered wheels.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: May 13, 2014
    Assignees: Mamiya-Op Co., Ltd., Carib Design Service Inc.
    Inventors: Koji Takahashi, Nobuhiko Suzuki, Tomoji Utsugi
  • Patent number: 8627642
    Abstract: A clippings collecting-discharging device includes: a bucket on a lawn mowing unit divided into a main body part including a clippings flow inlet and a movable part connected to an upper end of the main body part, and can be operated between a closed position where the main body part and the movable part abut against each other and an open position where the movable part is rotated upward and separated from the main body part; a discharge plate in the bucket positioned near the inlet in a lying posture when the bucket is closed; and a discharge mechanism where the discharge plate stands up toward an opening between the main body part and the movable part while interlocking with the operation of the bucket, which position is changed to the open position.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: January 14, 2014
    Assignee: Mamiya-Op Co., Ltd.
    Inventors: Koji Takahashi, Tomoji Utsugi, Kazuo Furukawa
  • Publication number: 20130047566
    Abstract: The invention is a working vehicle that has high practicality and a high degree of freedom of a turning operation. A lawn mowing vehicle includes a lawn mowing unit that includes drum wheels driven so as to rotate about an axis Ax1 extending in a vehicle width direction as a rotational center, a frame that is connected to the lawn mowing unit, and a steering drive device that is provided in the frame. The steering drive device includes a pair of steered wheels that is disposed in the vehicle width direction, steering units that can independently steer the pair of steered wheels respectively, and wheel driving units that can rotationally drive the pair of steered wheels.
    Type: Application
    Filed: January 4, 2012
    Publication date: February 28, 2013
    Applicants: CARIB DESIGN SERVICE INC, MAMIYA-OP Co., Ltd.
    Inventors: Koji TAKAHASHI, Nobuhiko SUZUKI, Tomoji UTSUGI
  • Publication number: 20130047569
    Abstract: A lifting device lifts and lowers the working unit with respect to an axis of wheels as a center and can move the wheels of the working unit aloft. The lifting device applies to a lawn mowing vehicle comprising a lawn mowing unit and a main body. The lawn mowing unit includes drum wheels that are rotatable about an axis Ax1 extending in a vehicle width direction. The main body is connected to the lawn mowing unit so as to be rotatable about the axis Ax1 and immovable in the axis Ax direction, and can travel with the lawn mowing unit. The lifting device includes a first support member at the lawn mowing unit, a second support member at the main body, and a linear actuator that includes a retractable rod having a front end portion and a main body part having a rear end portion.
    Type: Application
    Filed: January 4, 2012
    Publication date: February 28, 2013
    Applicant: MAMIYA-OP Co., Ltd.
    Inventors: Koji Takahashi, Tomoji Utsugi, Yasumasa Fujita
  • Publication number: 20130047570
    Abstract: A clippings collecting-discharging device saves labor in an operation for discharging collected clippings. The clippings collecting-discharging device includes: a bucket on a lawn mowing unit divided into a main body part including a clippings flow inlet and a movable part connected to an upper end of the main body part, and can be operated between a closed position where the main body part and the movable part abut against each other and an open position where the movable part is rotated upward and separated from the main body part; a discharge plate in the bucket positioned near the inlet in a lying posture when the bucket is closed; and a discharge mechanism where the discharge plate stands up toward an opening, between the main body part and the movable part while interlocking with the operation of the bucket, which position is changed to the open position.
    Type: Application
    Filed: January 4, 2012
    Publication date: February 28, 2013
    Applicant: MAMIYA-OP Co., Ltd.
    Inventors: Koji TAKAHASHI, Tomoji Utsugi, Kazuo Furukawa