Patents by Inventor Tsuneo Matsudaira

Tsuneo Matsudaira 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).

  • Structure of gasified and melting furnace
    Patent number: 6159428
    Abstract: A structure of a gasified and melting furnace comprising a freeboard portion whose center axis is shifted from a center axis of a lower furnace portion by 50% or more of an inner furnace diameter, to load waste and additives and to measure a height of a deposition layer formed in the lower furnace portion, without passing through the freeboard.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: December 12, 2000
    Assignee: NKK Corporation
    Inventors: Yuichi Yamakawa, Tsuneo Matsudaira, Sunao Nakamura, Tomohiro Yoshida, Yasuo Suzuki
  • Combustion apparatus having heat-recirculating function
    Patent number: 5375997
    Abstract: The combustion apparatus is composed of: a porous burner component being made of a permeable metallic material and having a centrally located first region (11a, 11aa, 11ba, 11ca) where the fuel-air mixture is ejected and the red heat condition is formed on the surface of downstream side and having a second region (10b, 11ab, 11bb, 11cb) being located outside of the first region to recover heat from high temperature product gas coming from a combustion chamber, wherein the heat recovered in the second region is conducted to the first region; the combustion chamber (8) being located covering both the first region and the second region and enclosing these regions; a fuel-air mixture supply passage (7) to feed the fuel-air mixture into the central first region; and an exhaust passage (6) to lead the flue gas discharged from the second region to the exhaust opening (9), which exhaust passage is located adjacent to and outside of the fuel-air mixture supply passage and is separated by a separation wall (4) therefro
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: December 27, 1994
    Assignee: NKK Corporation
    Inventors: Sunao Nakamura, Tsuneo Matsudaira, Felix J. Weinberg
  • Combustion apparatus having heat-recirculation function
    Patent number: 5375996
    Abstract: The combustion apparatus having a heat-recirculating function comprises: a porous burner component (4) being made of permeable metallic material and having a first region (4a) through which a fuel-air mixture flows and is ejected therefrom into the combustion chamber at a velocity higher than the burning velocity of the fuel-air mixture to form a flame base on the periphery of the fuel-air mixture ejection area and having a second region (4b) being located adjacent to and outside of the first region to recover heat from high temperature product gas generated from the combustion of the fuel-air mixtures by red-heating the surface of the second region on the combustion chamber side while the product gas is penetrating through the burner component (4), wherein the heat recovered in the second region is conducted to the first region; the combustion chamber (5) being located to cover both the first region (4a) and the second region (4b) and enclosing these regions, and a cylindrical wall (6) separating a fuel-air
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: December 27, 1994
    Assignee: NKK Corporation
    Inventors: Sunao Nakamura, Tsuneo Matsudaira, Felix J. Weinberg