Patents by Inventor Hiroaki Ohsaki

Hiroaki Ohsaki 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: 4573990
    Abstract: Disclosed herein is a disposable diaper formed from a web of layered material consisting of a water-absorbent, non-woven top sheet, a waterproof backing sheet bonded on its peripheral margins to the top sheet to thereby form a generally rectangular bag, and at least one layered middle pad encased in the bag. The web, with the top sheet facing up, is folded along its longitudinal center line into a generally inverted .OMEGA.-shaped vertical cross-sectional configuration and subsequently folded intermediate the opposite transverse ends thereof into a generally S-shaped vertical cross-sectional configuration whereby the front half of the web can be served as a front diapering area and the rear half of the web can be served as a rear diapering area. The S-shaped folded area of the web is bonded on the opposite longitudinal lapping margins to thereby form a pocket contiguous to the front diapering area of the web.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: March 4, 1986
    Assignee: Ohsaki Eisei Zairyo K.K.
    Inventor: Hiroaki Ohsaki