Patents by Inventor Yasuyo Isaji

Yasuyo Isaji 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).

  • Machine for cutting workpieces utilizing electric discharge
    Patent number: D286407
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: October 28, 1986
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Makoto Goto, Yasuyo Isaji
  • Drilling, tapping and milling machine
    Patent number: D302163
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: July 11, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Yasuyo Isaji, Noboru Hirose, Takashi Nozu
  • Drilling, tapping and milling machine
    Patent number: D302164
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: July 11, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Yasuyo Isaji, Noboru Hirose, Takashi Nozu
  • Machine for cutting workpieces utilizing electric discharge
    Patent number: D302165
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: July 11, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Yasuyo Isaji, Masao Shimomura
  • Sewing machine
    Patent number: D307024
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: April 3, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Yasuyo Isaji
  • Sewing machine
    Patent number: D309739
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: August 7, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Yasuyo Isaji
  • Printer
    Patent number: D338488
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: August 17, 1993
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuo Itoh, Yasuyo Isaji, Tomoyuki Okamoto