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. 11, 2014
Filed:
Mar. 31, 2011
Tomoyuki Shimoda, Kanagawa, JP;
Yoshio Inagaki, Kanagawa, JP;
Kimiaki Miyamoto, Kanagawa, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
An oxygen permeability measuring apparatus for measuring an oxygen permeation rate of oxygen barrier film in a dark room is provided. A container is charged with inert gas, and sealed hermetically by use of the oxygen barrier film at least partially. A chemiluminescent compound is contained in the container, for emitting light by oxidation with the oxygen. A photon detector detects photons emitted by the chemiluminescent compound so as to determine an amount of the oxygen permeated through the oxygen barrier film. Preferably, the container includes a container body. An opening is formed in the container body, and closed hermetically by the oxygen barrier film attached thereto. The photon detector is disposed inside or outside the container. The oxygen permeation rate is equal to or less than 10cc/m·day·atm. The chemiluminescent compound includes tetrakis(dimethylamino)ethylene.