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:
Jul. 15, 2014
Filed:
Jul. 23, 2004
Hidenobu Miyake, Taito-ku, JP;
Kouichi Shiozaki, Taito-ku, JP;
Yukihiro Nakamura, Taito-ku, JP;
Ikuno Shimeno, Taito-ku, JP;
Atsushi Tsujii, Taito-ku, JP;
Kayoko Hamada, Taito-ku, JP;
Hirofumi Kawai, Taito-ku, JP;
Kiyoshi Sawada, Taito-ku, JP;
Noriyuki Araki, Taito-ku, JP;
Masashi Goto, Taito-ku, JP;
Hidenobu Miyake, Taito-ku, JP;
Kouichi Shiozaki, Taito-ku, JP;
Yukihiro Nakamura, Taito-ku, JP;
Ikuno Shimeno, Taito-ku, JP;
Atsushi Tsujii, Taito-ku, JP;
Kayoko Hamada, Taito-ku, JP;
Hirofumi Kawai, Taito-ku, JP;
Kiyoshi Sawada, Taito-ku, JP;
Noriyuki Araki, Taito-ku, JP;
Masashi Goto, Taito-ku, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A packaging bag having a steam venting function capable of releasing pressure inside a package even when heating cooking is performed by a microwave oven and preventing the inside of the bag from being contaminated and the package using the packaging bag. The packaging bag includes two pieces of front and back main body films having sealant layers which are opposed to each other with the sealant layers facing inward, side seal parts, and a bottom seal part. The front body film is folded in the vicinity of the bottom seal part throughout the entire width of the bag and parallel with the bottom seal part to form a fold-in part. A steam venting port is formed in the fold-in part, and an easily peelable tape covering the steam venting port is disposed on the inside of the fold-in part throughout the width of the bag and parallel with the fold-in part, and then heat-sealed.