He had an especially close relationship with the Japanese folk art movement, and collected works of art by them, old everyday ornaments they admired, and antique art works, which he stored in his mansion 'Mikuni-so' villa in Mikuni, north of Osaka City.
特に日本民芸運動とは関係が深く、それにまつわる作家の美術作品や、彼らが手本とした古い生活雑器、古美術品の収集も行い、大阪の北の三国にはこれらの作品を収めた邸宅・三国荘があった。