Patents by Inventor Quing Cao

Quing Cao 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 article with compressed grooves
    Patent number: 9492331
    Abstract: To provide an absorbent article that can further reduce leakage of body fluid from an end portion in a longitudinal direction. An elongated shaped absorbent article includes: a top sheet that has a skin contacting surface; a back sheet; and an absorbent core that is disposed between the top sheet and the back sheet, in which a compressed groove is formed on the skin contacting surface; the skin contacting surface has an excretory contact region, a front region, and a rear region; the compressed groove has a pair of first central grooves and a first circular groove that is provided in at least any one of the front region and the rear region; and the first circular groove is arranged at a position overlapping a vertical center line.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: November 15, 2016
    Assignee: UNICHARM CORPORATION
    Inventors: Katsuhiro Uematsu, Quing Cao, Yukihiro Ito, Hiroyuki Harada, Kazuya Nishitani
  • ABSORBENT ARTICLE
    Publication number: 20130267926
    Abstract: To provide an absorbent article that can further reduce leakage of body fluid from an end portion in a longitudinal direction. An elongated shaped absorbent article includes: a top sheet that has a skin contacting surface; a back sheet; and an absorbent core that is disposed between the top sheet and the back sheet, in which a compressed groove is formed on the skin contacting surface; the skin contacting surface has an excretory contact region, a front region, and a rear region; the compressed groove has a pair of first central grooves and a first circular groove that is provided in at least any one of the front region and the rear region; and the first circular groove is arranged at a position overlapping a vertical center line.
    Type: Application
    Filed: August 30, 2011
    Publication date: October 10, 2013
    Applicant: UNI-CHARM CORPORATION
    Inventors: Katsuhiro Uematsu, Quing Cao, Yukihiro Ito, Hiroyuki Harada, Kazuya Nishitani