Patents by Inventor Fukuhisa Matusda

Fukuhisa Matusda 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).

  • Tungsten electrode material
    Patent number: 5512240
    Abstract: An arc discharge electrode material used for various electrode materials for arc welding, which is excellent in arc ignitability and consumability. The composition is 0.02 to 1.0 wt % lanthanum boride and the rest of tungsten.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: April 30, 1996
    Assignees: Toho Kinzoku Co., Ltd., Hokkai Tungsten Industrial Co. Ltd.
    Inventors: Fukuhisa Matusda, Masao Ushio, Kiyoyuki Hasegawa, Katsuyoshi Akabane, Takashi Matsuno