Patents by Inventor Hideki MITSUNARI

Hideki MITSUNARI 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).

  • Seamless steel pipe heat-treatment-finishing-treatment continuous facility
    Patent number: 11898216
    Abstract: A seamless steel pipe heat-treatment-finishing-treatment continuous facility includes: a heat treatment apparatus; a steel pipe inspection apparatus which performs a test for a surface defect and/or an inner defect of the seamless steel pipe, the steel pipe inspection apparatus being disposed downstream of the heat treatment apparatus; a main transfer mechanism which forms a main transfer path MT for transferring the seamless steel pipe, discharged from the heat treatment apparatus, to the steel pipe inspection apparatus disposed downstream of the heat treatment apparatus; and a first forced steel pipe-temperature reduction apparatus which forcibly reduces a temperature of the seamless steel pipe on the main transfer path MT, the first forced steel pipe-temperature reduction apparatus being disposed on the main transfer path MT at a position downstream of the heat treatment apparatus and upstream of the steel pipe inspection apparatus.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: February 13, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hiroki Kamitani, Takanori Tanaka, Atsushi Soma, Keiichi Kondo, Hideki Mitsunari, Seiya Okada, Takuya Matsumoto, Shinji Yoshida, Yuji Arai
  • SEAMLESS STEEL PIPE HEAT-TREATMENT-FINISHING-TREATMENT CONTINUOUS FACILITY
    Publication number: 20210025021
    Abstract: A seamless steel pipe heat-treatment-finishing-treatment continuous facility includes: a heat treatment apparatus; a steel pipe inspection apparatus which performs a test for a surface defect and/or an inner defect of the seamless steel pipe, the steel pipe inspection apparatus being disposed downstream of the heat treatment apparatus; a main transfer mechanism which forms a main transfer path MT for transferring the seamless steel pipe, discharged from the heat treatment apparatus, to the steel pipe inspection apparatus disposed downstream of the heat treatment apparatus; and a first forced steel pipe-temperature reduction apparatus which forcibly reduces a temperature of the seamless steel pipe on the main transfer path MT, the first forced steel pipe-temperature reduction apparatus being disposed on the main transfer path MT at a position downstream of the heat treatment apparatus and upstream of the steel pipe inspection apparatus.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 28, 2021
    Inventors: Hiroki KAMITANI, Takanori TANAKA, Atsushi SOMA, Keiichi KONDO, Hideki MITSUNARI, Seiya OKADA, Takuya MATSUMOTO, Shinji YOSHIDA, Yuji ARAI