Patents by Inventor Katsunobu Fukuda

Katsunobu Fukuda 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).

  • Wood fiberboard and manufacturing method therefor
    Patent number: 6376582
    Abstract: The wood fiberboard of the present invention comprises wood fibers which have been subjected to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment bonded together by a binder resin, wherein the content of the wood fibers which have been subjected to an acetylation treatment is 35 to 90% by weight of the total amount of wood fibers which have been treated to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: April 23, 2002
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Yoshihiro Hirano, Satoshi Suzuki, Katsunobu Fukuda, Hironori Watanabe