Patents by Inventor Masaaki Ookuwa

Masaaki Ookuwa 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: 5715614
    Abstract: A transplant machine including a bucket for digging a plant such as trees and shrubs from the ground, a main frame for pivotably supporting the bucket, an arm for lifting the main frame, a shaft extending from the main frame at right angles and an intermediate frame for connecting the main frame with the lifting arm such that the frame can rotate about the shaft relative to the lifting arm. The frame and the bucket rotate together. As the main frame rotates about the shaft, the bucket rotate with the main frame. Therefore, the transplant machine can change a direction of the a tree after a digging operation. In other words, it is possible to turn the tree while the bucket is holding the tree above the ground. During the turning of the tree, the lifting arm (or a main body of the transplant apparatus) is stopped since the intermediate frame allows the main frame and the bucket to rotate relative to the lifting arm. The bucket may be removable from the lifting arm.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: February 10, 1998
    Assignee: Kabushiki Kaisha Ishikatsu Exterior, Inc.
    Inventors: Masaaki Ookuwa, Takanori Fujiwara