Patents Assigned to Yechan Co., Ltd.
  • Patent number: 8403182
    Abstract: The present invention relates to an air pump type corrugated pipe that holds highly viscose material such as toothpaste in a cylindrical container combined with the corrugated pipe and expels contents using air pressure according to compression of the corrugated pipe, and a container using the same. The container includes an air pump type operation device, a tube type body, and a piston. According to the present invention having such structure, highly viscose material is expelled easily and clearly without residue, thereby economic loss is reduced and convenience in use is provided, also the cost of the container is cheap due to its simple constitution.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: March 26, 2013
    Assignee: Yechan Co., Ltd.
    Inventor: Jong Hun Lee
  • Publication number: 20100327023
    Abstract: The present invention relates to an air pump type corrugated pipe that holds highly viscose material such as toothpaste in a cylindrical container combined with the corrugated pipe and expels contents using air pressure according to compression of the corrugated pipe, and a container using the same. The container includes an air pump type operation device, a tube type body, and a piston. According to the present invention having such structure, highly viscose material is expelled easily and clearly without residue, thereby economic loss is reduced and convenience in use is provided, also the cost of the container is cheap due to its simple constitution.
    Type: Application
    Filed: February 19, 2009
    Publication date: December 30, 2010
    Applicant: Yechan Co. Ltd
    Inventor: Jong Hun Lee
  • Patent number: D857517
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: August 27, 2019
    Assignee: Yechan Co., Ltd.
    Inventor: Jong Hoon Lee