Patents by Inventor Jack Higa

Jack Higa 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: 5784433
    Abstract: A dental X-ray film structure includes a dental X-ray film packet in combination with a strip of soft, flexible cushion material. The strip moisture resistant includes a first portion adhered in partially overlapping engagement with a corresponding portion of one of the film packet surfaces along a selected edge of the packet, and a second portion contiguous with the first portion which extends outside the perimeter of the packet. The second portion serves to cushion the selected edge when the packet is positioned within the mouth of a dental patient for taking a dental X-ray. To completely cover the selected edge, the strip may include a third portion which is contiguous with the second portion, and which is adhered in partially overlapping engagement with a corresponding portion of the film packet surface opposite to the surface to which the first portion is adhered.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: July 21, 1998
    Inventor: Jack Higa
  • Patent number: 5549506
    Abstract: Apparatus for supporting and containing a dental prosthesis during the micro-etching thereof is disclosed. The apparatus includes a framework, a holding mechanism carried by the framework for holding the prosthesis in a position which permits micro-etching, and a flexible hood, for example, a disposable plastic bag, which has an open end sized to slidably receive the framework into the hood while holding the prosthesis. The open end is sealable while the framework is so received, and the hood is transparent to permit viewing of the prosthesis within the hood. The hood is sliceable with a knife edge to provide a small slit which permits the tip of a micro-etching tool to extend into the hood. Alternately, the hood may be pre-slit for the same purpose.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: August 27, 1996
    Inventors: Jack Higa, Lawrence R. Higa
  • Patent number: 4627817
    Abstract: An instrument for removing dental bridgework is disclosed. The instrument includes a support beam for extending into a patient's mouth over bridgework bonded therein; one or more bracing pins; and pulling means for drawings a pulling cord or cords looped beneath the bridgework in an occlusal direction towards the beam. In one structure, the bracing pin or pins have lower ends receivable by a hole or holes cut in the occlusal surface of a retainer or retainers forming part of the bridgework. In another structure, the lower end of a bracing pin has a protective footing for bracing against the exposed cusp of a tooth.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: December 9, 1986
    Inventor: Jack Higa