Amongst the Japanese home textile brands I've known so far, OTTAIPNU is my top favorite. It seems to be run by the same people of UNPIATTO. Searches on either one led to the same products, which are textile works by Masaru Suzuki, who is also a Textile Design part-time lecturer at Tokyo Zokei University.
All pictures above were taken from its old blog. You could find their new textile blog here.