Invention Grant
- Patent Title: Packaging pouch for microwave oven
- Patent Title (中): 微波炉包装袋
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Application No.: US10570269Application Date: 2004-08-31
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Publication No.: US07709771B2Publication Date: 2010-05-04
- Inventor: Keizou Kanzaki , Shie Nishimoto , Taketo Sakurai
- Applicant: Keizou Kanzaki , Shie Nishimoto , Taketo Sakurai
- Applicant Address: JP Tokyo
- Assignee: Toyo Seikan Kaisha, Ltd.
- Current Assignee: Toyo Seikan Kaisha, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2003-309583 20030902
- International Application: PCT/JP2004/001294 WO 20040831
- International Announcement: WO2005/023676 WO 20050317
- Main IPC: H05B6/80
- IPC: H05B6/80

Abstract:
An inexpensive packaging pouch for use in a microwave oven, in which the packaging pouch can be prevented from opening at the base part of a branch section when used for retorting or for cooking in the microwave oven, and pressure in the packaging pouch can be automatically released when the pouch is used for cooking in the microwave oven. A packaging pouch for microwave oven hermetically sealed by heat-sealing a plastic film is provided with a branch section, and a vapor release seal part having at least one weakened part is formed at the branch section. Opening preventive means are provided at the branch section and inside a peripheral edge seal part, facing the branch section, of a packaging pouch body.
Public/Granted literature
- US20070023425A1 Packaging bag for microwave oven Public/Granted day:2007-02-01
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