world’s first urethane waterproofing
In 1979 we succeeded in developing the urethane waterproof finish which
does not degrade even in 40 degrees below zero, for the first time in
the world. We obtained the utility model registration for it, and even
now this technology of Japanese origin is used all over the world as the
best waterproofing method.
1993 we obtained the utility model registration for “accordion system”
which is used for accordion sacks, now the standard item.
In 1998 we obtained the utility model
registration for “quick release system.”