The Shimonoseki City Art Museum procured two pieces of Ishigaki-yaki pottery for one of its permanent collections: Umi, a large circular plate, and a large square dish, as well as two reproductions of the fukufue, a type of ocarina first launched as a popular product in 1935 by a Shimonoseki City businessman Kojiro Kawamura and intended to be a symbol of the city. However, only a few of these ocarinas, originally known as fugufue, remained, and the instrument was under threat of becoming forever lost. A number of Japanese ceramists had previously attempted to reproduce the fugufue but none had been successful until Haruhiko Kaneko. His reproductions, now renamed fukufue, together with the knowledge required to reproduce the instrument, were bestowed to the City Museum.

Kojiro Kawamura was an entrepreneur born in Shimonoseki City who supported and nurtured many artists. Artists under his patronage included Ryusei Kishida, Ryuzaburo Umehara, Leonard Tsugouharu Foujita, and Yasuo Kazuki, who all worked in the youga or Western style of painting; Hokkai Takashima, who specialised in Japanese style painting; and Yumeji Takehisa, a painter and poet. The pieces by Haruhiko Kaneko, President and founder of the Ishigaki-yaki Pottery Studio, are now part of the Kawamura Collection at the Shimonoseki City Art Museum.