Patents by Inventor Fumisato Niino

Fumisato Niino 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).

  • Method of blanking metal foil on piezoelectric actuator operated press, and die sets for practicing the method
    Patent number: 5320013
    Abstract: In blanking a metal foil on a press comprising a pair of dies, a pair of punches, and a pair of piezoelectric actuators for driving the punches with are all arranged above and below the metal foil, the punches are vertically vibrated by the piezoelectric actuators, so that, while the punches being held abutted against both surfaces of the metal foil clamped between the dies, a half blanking operation and a reverse blanking operation are carried out alternately, whereby the metal foil is cut along the shearing surface through low cyclic fatigue without formation of burrs.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: June 14, 1994
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Mitsuharu Nonami, Yukinori Kawamura, Kozo Matsumoto, Norikatsu Matsumoto, Fumisato Niino