Patents by Inventor Koji Sangawa

Koji Sangawa 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).

  • Stack of sheets and sheet container
    Patent number: 8393496
    Abstract: A representative stack of sheets including sheet bodies each of which is formed by folding a sheet and has a plurality of pieces between both ends of the sheet body. The sheet bodies are stacked one on another in such a manner that one of the plurality of pieces of each of the sheet bodies on one side in a stacking direction and another piece on the other side are inserted between pieces of an adjacent sheet body on one side in the stacking direction with respect to the sheet body and between pieces of an adjacent sheet body on the other side in the stacking direction, respectively, wherein an auxiliary piece is formed by folding an end of the piece of the sheet body.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: March 12, 2013
    Assignee: Uni-Charm Corporation
    Inventors: Takeshi Bandoh, Koji Sangawa
  • STACK OF SHEETS AND SHEET CONTAINER
    Publication number: 20110101592
    Abstract: A representative stack of sheets including sheet bodies each of which is formed by folding a sheet and has a plurality of pieces between both ends of the sheet body. The sheet bodies are stacked one on another in such a manner that one of the plurality of pieces of each of the sheet bodies on one side in a stacking direction and another piece on the other side are inserted between pieces of an adjacent sheet body on one side in the stacking direction with respect to the sheet body and between pieces of an adjacent sheet body on the other side in the stacking direction, respectively, wherein an auxiliary piece is formed by folding an end of the piece of the sheet body.
    Type: Application
    Filed: March 30, 2009
    Publication date: May 5, 2011
    Applicant: UNI-CHARM CORPORATION
    Inventors: Takeshi Bandoh, Koji Sangawa