Inomata Masaaki (猪俣政昭) is a Bizen potter based at the Saizōbō kiln in Oku, Okayama prefecture, Japan. Born in Osaka in May 1948, he trained at the Aichi Ceramic Training School before apprenticing at the respected Bizen workshop Tōshōen, and became an independent potter in 1975. He was officially certified as a Dentō Kōgeishi, a government recognised Traditional Craftsman, in February 2008.

Bishū-gama in Imbe has built its entire reputation on one thing done exceptionally well: clean, legible hidasuki, the scarlet straw-marked style Bizen is known for. Founded in 1974 on the initiative of Living National Treasure Yamamoto Tōshū, the kiln now works under the signature Yamamoto Sōshū.