Patents by Inventor Masaki Tomihari

Masaki Tomihari 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 structure for paper carton, paper carton having pouring spout, and method of manufacturing such pouring spout
    Patent number: 5653383
    Abstract: In order to make the structure of the pouring spout simple by the use of a partial covering film, cover the inner peripheral surface around the pouring hole of the laminate base material properly, and prevent the contents from infiltrating into the inner peripheral surface around the pouring hole of the laminate base material, the present invention comprises the steps of attaching the inner waterproof layer and the partial covering film on the outer waterproof layer at the portion around the pouring hole, inside the pouring hole having penetrated through the laminate base material and the outer waterproof layer, boring a pouring spout on the attached portion, and attaching a tab tape to said partial covering film in a way capable of tearing off, so to cover the pouring spout.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: August 5, 1997
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Takuya Adachi, Masaki Tomihari, Noriyuki Sasaki, Takahisa Hirayama, Hideki Yamamoto, Yoshiaki Take, Yoshihiro Akima