Patents by Inventor Katsumi Takemi

Katsumi Takemi 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).

  • Dancer roll mechanism and web feeding apparatus incorporating such dancer roll mechanism
    Patent number: 6471152
    Abstract: A dancer roll device has a support assembly that supports a roll. A ball screw is rotatably mounted on the support assembly. A weight member is mounted on the ball screw by a nut member that is threaded over the ball screw. When the ball screw is rotated about its own axis by a motor, the nut member and the weight member are displaced along the ball screw, thereby displacing the center of gravity of the support assembly. The moment applied to the roll is changed, thus changing the tension that is applied to a wide web or a narrow web via the roll.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: October 29, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyohito Suzuki, Katsumi Takemi