Patents by Inventor Tetsuro Horiuchi

Tetsuro Horiuchi 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).

  • Lathanide series oxide modified alkaline-resistant glass
    Patent number: 4882302
    Abstract: The invention relates to alkaline resistant glasses, particularly glass fibers, which comprise silica, calcia and at least one lanthanide series metal oxide effective to enhance the alkali resistance of the glasses.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: November 21, 1989
    Assignee: Ensci, Inc.
    Inventors: Tetsuro Horiuchi, Arnold E. Goldman, Durai N. Raghavan
  • Alumina and alkaline earth metal oxide modified zeolite glass composition
    Patent number: 4680277
    Abstract: The invention relates to glasses formed from naturally occurring zeolites which are modified by inclusion of additional alumina.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: July 14, 1987
    Assignee: Ensci Incorporated
    Inventor: Tetsuro Horiuchi
  • Alkaline-resistant glass bodies and fibers
    Patent number: 4652535
    Abstract: The invention relates to glasses formed from modified naturally occurring zeolites and in particular to alkaline-resistant glasses containing a high calcia loading.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: March 24, 1987
    Assignee: Ensci Incorporated
    Inventors: John D. Mackenzie, Tetsuro Horiuchi
  • Hollow spheres produced from natural zeolites
    Patent number: 4448599
    Abstract: A process is described for the formation of hollow glassy generally spherical particles ("microspheres") from natural mineral zeolites. A zeolite (or a mixture of zeolites) is rapidly heated to a temperature above its liquidus temperature to melt its surfaces, vaporize its combined water and cause it to expand to form the microspheres. The microspheres have diameters in the range of 1 to 500 millimeters and densities of about 0.1 to 2.0 g/cm.sup.3. They are useful as fillers and extenders in many materials such as plastics, and, because of their resistance to alkaline attack, are especially useful as fillers in cementitious materials.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: May 15, 1984
    Assignee: Atlantic Richfield Company
    Inventors: John D. Mackenzie, Tetsuro Horiuchi