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:
Apr. 12, 2011
Filed:
Jul. 26, 2005
Ryuichi Kodama, Chiba, JP;
Hiroshi Endo, Chiba, JP;
Toshitaka Wada, Chiba, JP;
Shigeru Tanaka, Chiba, JP;
Ryuichi Kodama, Chiba, JP;
Hiroshi Endo, Chiba, JP;
Toshitaka Wada, Chiba, JP;
Shigeru Tanaka, Chiba, JP;
Powdertech Co., Ltd., Kashiwa-shi, JP;
Abstract
The oxygen detecting device () of the present invention includes an oxygen detector sheet having a sheet carrier () having a porous inorganic material filled therein which has been impregnated with an oxygen detecting fluid, and a film () having a predetermined oxygen transmittance for covering and sealing the sheet carrier (). Since the sheet having the porous inorganic material filled therein is adopted, the oxygen detecting device has an excellent light resistance, leading to clear recognition of coloration for a long period of time. Because of excellent light resistance, the device keeps excellent property even after long exposure to a fluorescent lamp in a display case for displaying foods. Thus the device is suitable for checking quality of commercial products.