Is the cotton breathing core made in Japan?

No, according to the patent inquiry website, Shenzhen Cotton Times Technology Co., Ltd. has a patent for cotton breathing core, and Shenzhen Cotton Times Technology Co., Ltd. is a China company, so the cotton breathing core is not Japanese. Cotton Breathing, originated from the diaper brand owned by Newland, Netherlands, is dedicated to the study of hypoallergenic skin of newborn babies.