Patents by Inventor Mayumi Shimabara

Mayumi Shimabara 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).

  • ZIPPER TAPE, PACKAGING BAG WITH ZIPPER TAPE, METHOD FOR PRODUCING PACKAGING BAG WITH ZIPPER TAPE AND PRODUCTION DEVICE THEREFOR
    Publication number: 20120201480
    Abstract: After engagement of a male belt-like member and a female belt-like member are disengaged, a void portion is formed by punching the female belt-like member with a die. The female belt-like member having the void portion and the male belt-like member are re-engaged with each other and fed between a folded base material film that is continuously fed. A male belt-like base and a female belt-like base are heat-sealed. A seal bar heat-seals the base material film to form a bottom seal portion. A side seal bar heat-seals the base material film to form side seal portions. The cutter cuts the base material film in the middle of the side seal portions to produce the packaging bag in which three sides of the bottom seal portion and the side seal portions are heat-sealed.
    Type: Application
    Filed: October 13, 2010
    Publication date: August 9, 2012
    Applicant: IDEMITSU UNITECH CO., LTD
    Inventors: Shuichi Goto, Ryo Katada, Mayumi Shimabara