Patents by Inventor Hollan Akio Tsuda

Hollan Akio Tsuda 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: 7654004
    Abstract: A hand tool is provided that includes both a fixed implement and a folding or rotatable implement, thereby taking advantage of the security and reliability of a fixed hand tool while also providing an additional implement in order to increase the utility of the resulting hand tool. In order to facilitate use of both fixed and rotatable implements, also provided are a locking mechanism, such as for individually locking the rotatable implement and the handle relative to the fixed implement, and a compound tool that can serve as the rotatable implement in order to mate with and receive at least a portion of the fixed implement, such as in instances in which both the fixed and rotatable implements are deployed.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 2, 2010
    Assignee: Leatherman Tool Group, Inc.
    Inventor: Hollan Akio Tsuda
  • Patent number: 7497015
    Abstract: A scissors-action tool whose blades or jaws are urged apart by a spring and which includes an adjustable member restricting opening movement to a limited blade or jaw separation angle during normal use of the tool, but allowing the blades or jaws to be opened to a wider angle when the adjustable member is moved to a rearward position. The adjustable member may be a rocker including an elongated hole permitting the rocker to be moved rearwardly from a normal position of engagement with a rocker pivot pin.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: March 3, 2009
    Assignee: Leatherman Tool Group, Inc.
    Inventor: Hollan Akio Tsuda
  • Patent number: 7337486
    Abstract: A hand tool is provided that includes a handle and one or more implements that are movable relative to the handle. The hand tool may include a first implement that is rotatable within a plane and a second implement that is slidable along an axis that may also lie within that same plane. The implements may include a variety of tools or blades, such as knife blades and cutting hooks. The hand tool may also include locks and/or catches to bias or lock one or more of the implements in retracted and extended positions. The handle may define a groove or other recess for holding an instrument such as a sharpening tool.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: March 4, 2008
    Assignee: Leatherman Tool Group, Inc.
    Inventors: Hollan Akio Tsuda, Nathan E. Knight, Melissa C. Yale, Charles F. Goodrich, III
  • Patent number: 7204022
    Abstract: A scissors-action tool whose blades or jaws are urged apart by a spring and which includes an adjustable member restricting opening movement to a limited blade or jaw separation angle during normal use of the tool, but allowing the blades or jaws to be opened to a wider angle when the adjustable member is moved to a rearward position. The adjustable member may be a rocker including an elongated hole permitting the rocker to be moved rearwardly from a normal position of engagement with a rocker pivot pin.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: April 17, 2007
    Assignee: Leatherman Tool Group, Inc.
    Inventor: Hollan Akio Tsuda
  • Patent number: D564326
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: March 18, 2008
    Assignee: Leatherman Tool Group, Inc.
    Inventors: Hollan Akio Tsuda, Blair Scott Barnes, Charles F. Goodrich, Melissa C. Yale, Nathan E. Knight
  • Patent number: D573435
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: July 22, 2008
    Assignee: Leatherman Tool Group, Inc.
    Inventors: Hollan Akio Tsuda, Blair Scott Barnes