| November 11, 1936 | - Nakagawa Do (the predecessor of Nakagawa Chemical Inc.) was founded.
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| 1946 / Showa 21 | - Nakagawa-do resumed postwar operations
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| 1961 / Showa 36 | - Reorganized as Nakagawa-do Co.
- New Material Development Department established and development of CUTTING SHEET® begins.
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| 1966 / Showa 41 | - Began marketing CUTTING SHEET®, a color material that replaces paint.
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| 1967 / Showa 42 | |
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| August 1, 1975 | - Establishment of Nakagawa Chemical Inc.
(The New Materials Development Department of Nakagawa-do Co.)
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| 1976 / Showa 51 | |
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| 1978 / Showa 53 | - Osaka Sales Office established
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| 1979 / Showa 54 | |
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| 1982/1982 | - First CS Design Award held.
(With the approval of Mr. Masaru Katsumi, the company invited Mr. Katsumi as the chairman of the jury.)
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| 1985 / Showa 60 | - Koshinkan Dojo was established.
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| 1986/1986 | - First issue of "Alchemy" published.
- The 4th CS Design Award was held (thereafter, it became a biennale).
- Increased the number of colors of CUTTING SHEET® to 100 by requesting Ikko Tanaka to select the colors
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| 1987 1987 | - First issue of "Man and Symbol" published.
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| 1989 Heisei first year | - Fukuoka Sales Office established
- Began development of NOCS2500 in collaboration with Japan Color Research Institute
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| 1990/Heisei 2 | - Increased the number of CUTTING SHEET® colors to 200.
- Sapporo Sales Office established.
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| 1995/Heisei 7 | |
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| 1998 / Heisei 10 | - The 10th CS Design Award held. Student section added.
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| 2000 / Heisei 12 | - Windy Collection" was launched.
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| 2001 / Heisei 13 | - Tokyo warehouse relocated from Kinshicho to Matsumoto, Edogawa-ku, Tokyo.
- Launch of "Super MATERIO
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| 2002 / April 1, 2002 | - Head office relocated. To present.
- Received a request from the Ministry of Agriculture, Forestry and Fisheries for cooperation in the preparation of the Landscape Environment Guidance Document,
Completion and release of "Colors of Village and Town," an environmental guidance document based on NOCS2500. - Added 222 rural landscape colors to NOCS, bringing the total to 518 colors.
- The 12th CS Design Award was held. The student category became independent and became the CS Design Student Award.
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| October 15, 2007 | - CS Design Center established.
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