Patents by Inventor Wasaburo Kengaku

Wasaburo Kengaku 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).

  • Slenderized animal wool and its manufacturing method
    Patent number: 5459902
    Abstract: A sliver of animal wool is subjected to hot drawing under its wet state to provide a slenderized fine animal wool.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: October 24, 1995
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Ryohei Hino, Tadashi Karakawa, Wasaburo Kengaku, Takashi Kondo, Masaru Yamada