Patents by Inventor Masatake Dohzono

Masatake Dohzono 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).

  • Absorbent member
    Patent number: 4835042
    Abstract: An absorbent member, suitable for a tampon, is produced by ejecting a liquid against a sheet of water-absorptive fibers in order to interlace the fibers with each other and molding under a pressure the sheet to form the absorbent member.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: May 30, 1989
    Assignee: KAO Corporation
    Inventors: Masatake Dohzono, Iwao Miyashita, Norihiro Abe
  • Absorbent member for tampon
    Patent number: 4714466
    Abstract: An absorbent member, suitable for a tampon, is produced by ejecting a liquid against a sheet of water-absorptive fibers in order to interlace the fibers with each other and moulding under a pressure the sheet to form the absorbent member.
    Type: Grant
    Filed: January 7, 1986
    Date of Patent: December 22, 1987
    Assignee: Kao Corporation
    Inventors: Masatake Dohzono, Iwao Miyashita, Norihiro Abe