Patents by Inventor Kazuo Kunihisa

Kazuo Kunihisa 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).

  • Patent number: 5445713
    Abstract: Apparatus for forming multilayered paper includes an endless loop of felt and at least two short wire units provided beneath the loop of felt. Each short wire unit has a fixed dehydrator having a forming shoe, at least part of the upper surface of which is curved, and a short wire traveling over the curved part of the upper surface of the forming shoe. The endless loop of felt is engaged with the short wire on the curved upper surfaces of the forming shoes of the fixed dehydrators. Stock is ejected from a head box onto each short wire unit and is moved between the endless loop of felt and the short wire of the unit where the stock is dehydrated to thereby form a paper layer. Each of a forming roll and a couch roll guiding the felt into engagement with the short wire, and a felt roll disposed beneath the felt downstream of the short wire unit, can be moved vertically.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: August 29, 1995
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, SK Engineering Co., Ltd.
    Inventors: Kazuo Kunihisa, Hiroto Shimazu, Takashi Bando, Masateru Tokuno