Through entrepreneurial activity of Jutaro MATSUMOTO, however, the companies established by MATSUMOTO such as Osaka Spinning (now, Toyobo Co., Ltd.), Nankai Railway (now, Nankai Electric Railway Co., Ltd.), Sanyo Railway (now, West Japan Railway Company), Japan Fire Insurance (now, Japan Fire and Marine Insurance), Osaka Beer (now, Asahi Breweries, Ltd.) and others have still been successful.

They were intended to make sure that the pupil understood his own opinion, and (by necessary correlation) the opinion opposed to it, and could enforce the grounds of the one and confute those of the other.

As a result, they are sometimes referred to in the honorific 'go-zabuton', although in this case the term 'go-zabuton' sometimes indicates zabuton used by priests in religious rites and these are decorated and have special elasticity.