Blueprint of the Hokusai Museum released in the Obuse Town Newsletter (September).
| 1948 | Commemorative Event celebrating 100 years after the death of Katsushika Hokusai and 65 years after the death of Takai Kozan (October 11 - 12). |
| 1954 | Merger of Obuse-machi and Tsusumi-mura (November 1). Festival floats disclosed (November 9 - 10). |
| 1966 | Hokusai Exhibit in Moscow and Leningrad sponsored by Nihon Keizai Shimbun, Inc. (October). |
| 1967 | Hokusai Exhibit sponsored by Nihon Keizai Shimbun, Inc. at Takashimaya Department Store in Nihonbashi, Tokyo (April 11 - 23). |
| Hokusai Research Association founded (August 8). | |
| Proposals for the Hokusai Museum initiated. | |
| Hokusai Exhibit sponsored by Nihon Keizai Shimbun, Inc. at Meitetsu Department Store in Nagoya (November 10 - 15). | |
| 1968 | Takai Kozan and Hokusai of Shinshu Exhibit at Shinano Museum of Art (March 12). |
| 1969 | Ghosts and Goblins Exhibit sponsored by the Hokusai Research Association at the office of Kotai Jinja Shrine (August 12 - 14). |
| Brush Paintings of Katsushika Hokusai at the Gotoh Museum in Tokyo (November 25 - December 10). | |
| 1971 | Katsushika Hokusai Exhibit sponsored by Nihon Keizai Shimbun, Inc. at Sogo Department Store in Sannomiya, Kobe (October 1 - 13). |
| 1972 | Hokusai Exhibit sponsored by Nihon Keizai Shimbun, Inc. at Mitsukoshi Department Store in Nihonbashi, Tokyo (January 4 - 9). |
| Reporters dispatched to Obuse for a NHK television program (October 1 - 4). | |
| NHK program Oh My Hokusai (November 2). | |
| During the program Ichimura Ikuo, the head of Obuse, speaks of plans for the Hokusai Museum. | |
| 1973 | Art of Katsushika Hokusai of Japan at China Art Gallaly in Beijing, Shanghai Art Museum (March 10 - end of April). |
| Eight works including the festival float ceiling paintings designated as official treasures of Obuse (March). | |
| 1974 | Hokusai Exhibit sponsored by the Gotoh Museum and Nihon Keizai Shimbun, Inc. at Tokyu Department Store in Shibuya, Tokyo (January 4 - 9). |
| Ukiyo-e researcher Professor Yura Tetsuji makes his first visit to Obuse and examines works such as the ceiling painting of Gansho-in Temple. |
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| 1975 | Construction of the Hokusai Museum made official by the Public Corporation of the Obuse Town Development Council (January).
Blueprint of the Hokusai Museum released in the Obuse Town Newsletter (September). |