Koichi Okumura was originally well known for his landscape paintings and prints, particularly of Kyoto. He was one of many ukiyo-e artists who designed woodblock prints for the publisher Unsodo. Okumura's woodblock prints were included in the 1948 series, Twelve Views of Kyoto, along with several other artists. That same year, he also designed a group of smaller chuban prints titled Eight Views of Kyoto. During the early 1950s, he designed several other landscape prints, including prints of Mt. Fuji and the Inland Sea.