Patents by Inventor Youichi Tabei

Youichi Tabei 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).

  • Molding method by forging and molding method for case
    Publication number: 20070006628
    Abstract: A material member blanked from metal sheet is subjected to upsetting to form an annular peripheral portion that is thinner than the center part of the material inside the annular portion, and the thicker inside portion is formed into a concavity. The first intermediate product thus formed is drawn to form a cup-shaped case with an internal boss and/or an external boss, and an outside flange. The intermediate product can also be used to make gears and the like.
    Type: Application
    Filed: April 16, 2004
    Publication date: January 11, 2007
    Inventors: Youichi Tabei, Takashi Araki, Shinji Kouno, Shoichi Yanaoka, Takashi Miura