Patents by Inventor Tsutomu Hashino

Tsutomu Hashino 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).

  • Drawing apparatus of the double action and lower punch slide type
    Patent number: 4615204
    Abstract: In a drawing apparatus of the type in which a lower punch slide moves upward to draw a blank clamped between a movable die and a stationary blank holder, an adjustable ram is provided which is electrically driven to move upward and downward for thereby adjusting the bottom dead position of the punch so that the upper end of the punch is made substantially flush with the upper end surface of the blank holder when the punch is in its bottom dead position.
    Type: Grant
    Filed: December 5, 1984
    Date of Patent: October 7, 1986
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Takeshi Yamamoto, Tadashi Furubayashi, Masanobu Igami, Tsutomu Hashino