Patents by Inventor Yuuki YONEZAWA

Yuuki YONEZAWA 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).

  • Water-soluble film, packaging bag, content release body, and method for producing water-soluble film
    Patent number: 9809365
    Abstract: To provide a water-soluble film having excellent solubility, a packaging bag using the water-soluble film, a content release body using the water-soluble film, and a method for producing a water-soluble film. It is a water-soluble film prepared by film-forming a raw material containing a polyvinyl alcohol-based resin and a bisulfite. A bisulfite is added to the raw material containing the polyvinyl alcohol-based resin. Owing to this, the decrease in solubility of the water-soluble film is suppressed even though the raw material is maintained in a heating state for a predetermined time. This effect is the effect characteristic in a bisulfite, and is the effect that is not obtained in the case where a sulfite is used.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: November 7, 2017
    Assignee: AICELLO CORPORATION
    Inventors: Yuuki Yonezawa, Yuki Yasui
  • WATER-SOLUBLE FILM, PACKAGING BAG, CONTENT RELEASE BODY, AND METHOD FOR PRODUCING WATER-SOLUBLE FILM
    Publication number: 20170259975
    Abstract: To provide a water-soluble film having excellent solubility, a packaging bag using the water-soluble film, a content release body using the water-soluble film, and a method for producing a water-soluble film. It is a water-soluble film prepared by film-forming a raw material containing a polyvinyl alcohol-based resin and a bisulfite. A bisulfite is added to the raw material containing the polyvinyl alcohol-based resin. Owing to this, the decrease in solubility of the water-soluble film is suppressed even though the raw material is maintained in a heating state for a predetermined time. This effect is the effect characteristic in a bisulfite, and is the effect that is not obtained in the case where a sulfite is used.
    Type: Application
    Filed: September 8, 2015
    Publication date: September 14, 2017
    Applicant: AICELLO CORPORATION
    Inventors: Yuuki YONEZAWA, Yuki YASUI