Patents by Inventor HIROYUKI NAKAMIZO

HIROYUKI NAKAMIZO 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).

  • Method and device for manufacturing black coated steel sheets
    Patent number: 11512380
    Abstract: The present invention provides a method for manufacturing more beautiful black coated steel sheets by uniformly blackening the coating layer. Specifically, the present invention provides a method for manufacturing black coated steel sheets, which brings Zn—Al—Mg alloy coated steel sheets (1) into contact with steam in a closed container (10), wherein said closed container (10) can maintain a predefined internal pressure through variable control of the amount of steam flowing into said closed container (10) and/or the amount of steam flowing out of said closed container (10), and in said closed container (10) that can maintain said predefined pressure, said Zn—Al—Mg alloy coated steel sheets (1) have contact with the steam introduced into said closed container (10).
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 29, 2022
    Assignee: NIPPON STEEL NISSHIN CO., LTD.
    Inventors: Masaki Yamamoto, Tadashi Nakano, Ichiro Takahashi, Hiroyuki Nakamizo, Toshiaki Sato, Yoshinobu Kurisu, Yuuki Sakuraba, Yoshitaka Yukura, Tsutomu Ohta, Shinichi Kajimoto, Noboru Suzuki, Masahiko Tsuchiyama, Yuusuke Murai
  • Method and device for manufacturing steam-treated products
    Patent number: 11326223
    Abstract: The present invention enables quick cooling of steam-treated objects and thus reduces the manufacturing time of steam-treated products such as black coated steel sheets. The present invention provides a method for manufacturing steam-treated products, which involves a steam treatment step that introduces steam into a closed container (10) containing a treatment object (1) and brings the treatment object (1) into contact with the steam, and a treated object cooling step that cools the object (1) treated with steam in the steam treatment step, wherein said treated object cooling step introduces coolant gas into said closed container (10), brings said treated object (1) into contact with the coolant gas, and discharges the introduced coolant gas from said closed container (10).
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 10, 2022
    Assignee: NIPPON STEEL NISSHIN CO., LTD.
    Inventors: Masaki Yamamoto, Yoshinobu Kurisu, Toshiaki Sato, Toyoharu Yasuda, Ichiro Takahashi, Hiroyuki Nakamizo, Tadashi Nakano, Hirokazu Tsuji, Takahide Hayashida, Yoshitaka Yukura, Tsutomu Ohta, Shinichi Kajimoto, Takumi Uchiyama, Noboru Suzuki, Masahiko Tsuchiyama, Yuusuke Murai
  • METHOD AND DEVICE FOR MANUFACTURING BLACK COATED STEEL SHEETS
    Publication number: 20200190654
    Abstract: The present invention provides a method for manufacturing more beautiful black coated steel sheets by uniformly blackening the coating layer. Specifically, the present invention provides a method for manufacturing black coated steel sheets, which brings Zn—Al—Mg alloy coated steel sheets (1) into contact with steam in a closed container (10), wherein said closed container (10) can maintain a predefined internal pressure through variable control of the amount of steam flowing into said closed container (10) and/or the amount of steam flowing out of said closed container (10), and in said closed container (10) that can maintain said predefined pressure, said Zn—Al—Mg alloy coated steel sheets (1) have contact with the steam introduced into said closed container (10).
    Type: Application
    Filed: January 17, 2018
    Publication date: June 18, 2020
    Inventors: MASAKI YAMAMOTO, TADASHI NAKANO, ICHIRO TAKAHASHI, HIROYUKI NAKAMIZO, TOSHIAKI SATO, YOSHINOBU KURISU, YUUKI SAKURABA, YOSHITAKA YUKURA, TSUTOMU OHTA, SHINICHI KAJIMOTO, NOBORU SUZUKI, MASAHIKO TSUCHIYAMA, YUUSUKE MURAI
  • METHOD AND DEVICE FOR MANUFACTURING STEAM-TREATED PRODUCTS
    Publication number: 20200048728
    Abstract: The present invention enables quick cooling of steam-treated objects and thus reduces the manufacturing time of steam-treated products such as black coated steel sheets. The present invention provides a method for manufacturing steam-treated products, which involves a steam treatment step that introduces steam into a closed container (10) containing a treatment object (1) and brings the treatment object (1) into contact with the steam, and a treated object cooling step that cools the object (1) treated with steam in the steam treatment step, wherein said treated object cooling step introduces coolant gas into said closed container (10), brings said treated object (1) into contact with the coolant gas, and discharges the introduced coolant gas from said closed container (10).
    Type: Application
    Filed: March 29, 2018
    Publication date: February 13, 2020
    Inventors: MASAKI YAMAMOTO, YOSHINOBU KURISU, TOSHIAKI SATO, TOYOHARU YASUDA, ICHIRO TAKAHASHI, HIROYUKI NAKAMIZO, TADASHI NAKANO, HIROKAZU TSUJI, TAKAHIDE HAYASHIDA, YOSHITAKA YUKURA, TSUTOMU OHTA, SHINICHI KAJIMOTO, TAKUMI UCHIYAMA, NOBORU SUZUKI, MASAHIKO TSUCHIYAMA, YUUSUKE MURAI