Patents by Inventor Masanari Yamazaki

Masanari Yamazaki 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).

  • Waste heat recovery structure for steel making electric arc furnaces, steel making electric arc furnace facility, and waste heat recovery method for steel making electric arc furnaces
    Patent number: 9157336
    Abstract: A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 13, 2015
    Assignee: JP STEEL PLANTECH CO.
    Inventors: Keiji Wakahara, Nobuyuki Fujikura, Masanari Yamazaki, Masayuki Watanabe, Yoshinori Okuyama
  • WASTE HEAT RECOVERY STRUCTURE FOR STEEL MAKING ELECTRIC ARC FURNACES, STEEL MAKING ELECTRIC ARC FURNACE FACILITY, AND WASTE HEAT RECOVERY METHOD FOR STEEL MAKING ELECTRIC ARC FURNACES
    Publication number: 20120320941
    Abstract: A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths.
    Type: Application
    Filed: April 19, 2011
    Publication date: December 20, 2012
    Applicant: JP STEEL PLANTECH CO
    Inventors: Keiji Wakahara, Nobuyuki Fujikura, Masanari Yamazaki, Masayuki Watanabe, Yoshinori Okuyama