A decoding device is provided, which can minimize the number of coded data addition requests by the decoding device, reduce processing time to prevent delay, and minimize frame rate reduction. The first computer processor and the second remote computer processor are coupled via a network connection. An electronic cash register receives an indication of a proposed payment amount for the electronic product. If the extent of match satisfies a threshold, a security response is triggered based upon the extent of match. An impregnation vessel is established that is hydraulically isolated, in which the flow of fluid and the establishment of its alkali content take place without any influence from the fluid flow in the digester process. In the flat wound electrode body, a central portion has a more constricted shape than end portions by pressing toward a winding axis in a short-side direction and each end portion includes an end-portion positive electrode sheet, an end-portion negative electrode sheet, and end-portion separators, and a core member arranged more inward than them.