Patents by Inventor Masaji Yoneta

Masaji Yoneta 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).

  • Process and apparatus for the pyrolysis of hydrocarbon gas
    Patent number: 6921517
    Abstract: A hydrocarbon gas to be decomposed, optionally mixed with water vapor, is allowed to flow through the gap between various porous tubes 4 constituting a group of porous tubes provided extending vertically in a decomposition reaction column 1 while air or oxygen is jetted homogeneously from the interior to the exterior of the porous tubes in the direction perpendicular to the stream of the hydrocarbon gas to be decomposed, optionally mixed with water vapor. The mixture is then ignited to form a diffusion flame layer B on the outer surface of the porous tubes 4. With the diffusion flame layer as a heat source, the hydrocarbon gas to be decomposed, optionally mixed with water vapor, undergoes pyrolysis.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: July 26, 2005
    Assignees: The Japan Steel Works, Ltd., Kubota Corporation
    Inventors: Shuzo Matsumura, Masaji Yoneta, Rokuro Denda, Yoshito Umeda, Masao Hattori, Satoshi Hagi, Jun Funakoshi, Akira Kosaka
  • Process and apparatus for the pyrolysis of hydrocarbon gas
    Publication number: 20020039548
    Abstract: A hydrocarbon gas to be decomposed, optionally mixed with water vapor, is allowed to flow through the gap between various porous tubes 4 constituting a group of porous tubes provided extending vertically in a decomposition reaction column 1 while air or oxygen is jetted homogeneously from the interior to the exterior of the porous tubes in the direction perpendicular to the stream of the hydrocarbon gas to be decomposed, optionally mixed with water vapor. The mixture is then ignited to form a diffusion flame layer B on the outer surface of the porous tubes 4. With the diffusion flame layer as a heat source, the hydrocarbon gas to be decomposed, optionally mixed with water vapor, undergoes pyrolysis.
    Type: Application
    Filed: December 11, 2001
    Publication date: April 4, 2002
    Applicant: SHUZO MATSUMURA, THE JAPAN STEEL WORKS, LTD.
    Inventors: Shuzo Matsumura, Masaji Yoneta, Rokuro Denda, Yoshito Umeda, Masao Hattori, Satoshi Hagi, Jun Funakoshi, Akira Kosaka
  • Heat exchanger using hydrogen storage alloy
    Patent number: 4723595
    Abstract: A heat exchanger using two hydrogen storage alloys, including: a tubular housing member disposed in a horizontal position; a vertical partition plate extending axially within the housing member for partitioning the inside space of the housing member into two, first and second reaction zones in which the first and second alloys are contained, respectively, to form an upper space above each alloy; first and second heat-exchange tubes disposed in the first and second reaction zones, respectively, and arranged so that first and second fluids may be passed therethrough for indirect heat exchange with the first and second alloys, respectively; openings provided in the vertical partition plate at least at positions so that the upper space in the first and second reaction zones are in fluid communication with each other; and a plurality of vertically extending gas passages provided in each of the first and second reaction zones, and each being in fluid communication with the upper space, whereby hydrogen gas released
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: February 9, 1988
    Assignees: Chiyoda Chemical Engineering Construction Co., Ltd., Japan Steel Works
    Inventors: Takashi Yasunaga, Jotaro Itoh, Akira Yanoma, Takaharu Nitta, Kotaro Chiba, Masaji Yoneta, Sakio Inoue