The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2011
Filed:
Aug. 20, 2009
Applicants:
Kenji Nagata, Chiyoda-ku, JP;
Toru Ichikawa, Chiyoda-ku, JP;
Inventors:
Kenji Nagata, Chiyoda-ku, JP;
Toru Ichikawa, Chiyoda-ku, JP;
Assignee:
Hosokawa Yoko Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B 1/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of manufacturing a packaging bag includes steps of: preparing a sheet of rectangular film material; forming a bag body from the sheet of the rectangular film material; preparing a shaping member; preparing and attaching a fastener; forming a vertical sealing portion; forming the bottom surface portion so as to include a lower end seal portion; a triangular folded portion; and a flat surface folding portion; and forming the lower sealing portion so as to include a central sealing portion; and a side sealing portion.