Patents by Inventor Hiroko Tsukada

Hiroko Tsukada 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).

  • Pouring spout
    Patent number: 5769273
    Abstract: A pouring spout 5 is mounted on the front surface of a carton 2. The pouring spout 5 pierces through an inner bag. Only a region which is slightly larger than the half of the inner bag 3 on the pouring spout side is adhered to the inner surfaces of the carton by a paste. As the content is discharged, since the movable portion of the inner bag is injected into the fixed portion fixed on the inner surfaces of the carton, as the content is discharged, the volume of the inner bag is decreased.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: June 23, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yasuyuki Sasaki, Takehiko Bizen, Hiroshi Miyama, Takeshi Morisako, Hiroko Tsukada
  • Bag-in-carton and pouring spout thereof
    Patent number: 5551600
    Abstract: A pouring spout 5 is mounted on the front surface of a carton 2. The pouring spout 5 pierces through an inner bag. Only a region which is slightly larger than the half of the inner bag 3 on the pouring spout side is adhered to the inner surfaces of the carton by a paste. As the content is discharged, since the movable portion of the inner bag is injected into the fixed portion fixed on the inner surfaces of the carton, as the content is discharged, the volume of the inner bag is decreased.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: September 3, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yasuyuki Sasaki, Takehiko Bizen, Hiroshi Miyama, Takeshi Morisako, Hiroko Tsukada
  • Bag-in-carton and pouring spout thereof
    Patent number: 5433345
    Abstract: A pouring spout 5 is mounted on the front surface of a carton 2. The pouring spout 5 pierces through an inner bag. Only a region which is slightly larger than the half of the inner bag 3 on the pouring spout side is adhered to the inner surfaces of the carton by a paste. As the content is discharged, since the movable portion of the inner bag is injected into the fixed portion fixed on the inner surfaces of the carton, as the content is discharged, the volume of the inner bag is decreased.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: July 18, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yasuyuki Sasaki, Takehiko Bizen, Hiroshi Miyama, Takeshi Morisako, Hiroko Tsukada