Patents by Inventor Fumihito Naito

Fumihito Naito 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).

  • Bone excavating apparatus for repairing ligament and a bone tunnel forming method
    Patent number: 6015411
    Abstract: A bone-excavating apparatus comprises a shaft and a drill so sized as to be inserted into an articulation through a skin-cutting portion and removable from the shaft. In a state in which the shaft is installed on the drill, the shaft and the drill have a drill-locking mechanism for preventing the drill from being moved to a base side of the shaft and a torque transmission mechanism for transmitting, to the drill, a rotational force applied to the shaft in a direction in which a bone-excavating blade is allowed to excavate the bone.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: January 18, 2000
    Assignee: Nagoya Screw Mfg. Co., Ltd.
    Inventors: Yasumitsu Ohkoshi, Fumihito Naito