Patents by Inventor Masato Shibayama

Masato Shibayama 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).

  • Patent number: 11970750
    Abstract: There is provided a non-oriented electrical steel sheet in which, in a cross section of a base material in a sheet thickness direction, the number density N2-5 of precipitates with an equivalent circle diameter of 50 to 500 nm present in a range of 2.0 to 5.0 ?m from the surface of the base material in the sheet thickness direction is 0.30 pieces/?m2 or less, and the relationship between the number density N2-5 and the number density N0-2 of precipitates with an equivalent circle diameter of 50 to 500 nm present in a range from the surface of the base material to 2.0 ?m satisfies Formula (1): (N2-5)/(N0-2)?0.5??Formula (1).
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: April 30, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Nobusato Morishige, Takeru Ichie, Masato Yasuda, Masahide Urago, Fuminobu Murakami, Daichi Hamada, Atsushi Shibayama, Kazumi Mizukami, Daisuke Itabashi
  • Patent number: D273381
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: April 10, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Abe, Masato Shibayama, Yoshifumi Asakawa, Seiji Kinoshita
  • Patent number: D273784
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: May 8, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Yoshifumi Asakawa, Seiji Kinoshita, Kazuhisa Ogawa
  • Patent number: D280203
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: August 20, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Kiyohide Koizumi, Kouichi Sugimoto, Hitoshi Kusakawa, Tatenori Jinriki
  • Patent number: D283509
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: April 22, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Yoshifumi Asakawa, Seiji Kinoshita, Kazuhisa Ogawa
  • Patent number: D287368
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: December 23, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Daijiro Ida, Masayuki Ohshiro, Ichiro Takahashi, Yasuhiro Hashimoto, Humio Hujisawa, Takeshi Araya
  • Patent number: D288935
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: March 24, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Atuyuki Gotou, Masato Shibayama, Takeshi Abe, Takashi Kawakami, Shintaro Masuda
  • Patent number: D289406
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: April 21, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Atuyuki Gotou, Takashi Kawakami, Shintaro Masuda
  • Patent number: D289407
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: April 21, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Takashi Kawakami, Shintaro Masuda
  • Patent number: D289895
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: May 19, 1987
    Assignee: Hitachi Denshi Kabushiki Kaisha
    Inventors: Masato Shibayama, Seiji Kinoshita, Atsushi Murata, Toshiyuki Hasegawa
  • Patent number: D290263
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: June 9, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Atuyuki Gotou, Mituo Nakamura, Tutomu Takahashi, Masao Tuji
  • Patent number: D292000
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: September 22, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Ko Tsuji, Akira Uchida, Masayuki Ohshiro
  • Patent number: D292001
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: September 22, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Yutaka Imaizumi, Housei Higashi, Masato Shibayama
  • Patent number: D292002
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: September 22, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Yutaka Imaizumi, Housei Higashi
  • Patent number: D292003
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: September 22, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Yutaka Imaizumi, Housei Higashi, Masato Shibayama
  • Patent number: D293324
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: December 22, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Atsuyuki Gotou, Masato Shibayama, Takeshi Abe, Ryouichi Hisatomi, Takeshi Sasaki
  • Patent number: D296790
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: July 19, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Kazuyuki Tsuburaya, Masato Shibayama, Takeshi Abe, Ko Tsuji, Akira Uchida, Masayuki Ohshiro
  • Patent number: D298747
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: November 29, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Nobuyuki Kojima, Ryouichi Abe
  • Patent number: D307740
    Type: Grant
    Filed: August 22, 1986
    Date of Patent: May 8, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Kazuyuki Tsuburaya, Michiaki Kotsuka, Takayuki Oshiga, Katsuhiro Fujiwara
  • Patent number: D334581
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: April 6, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Akira Yoshikawa, Masato Shibayama, Shigeki Masatsugu, Tatenori Jinriki