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January 1960
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Ishibashi Real Estate Corporation was established through a split-up of the formerly known Bridgestone Tire Co., Ltd.
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May 1960
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The company’s name was changed to Ishibashi Corporation.
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December 1991
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The company’s name was changed to Nagasaka Corporation.
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June 2015
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The demolition and reconstruction of the former Bridgestone Building (new construction of Museum Tower Kyobashi) was started.
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April 2019
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The General Incorporated Association Kyobashi Saiku Area Management was established with Toda Corporation, co-operator of the block development.
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May 2019
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The Museum Tower Kyobashi Management Association was established by the building’s unit owners, Nagasaka Corporation and the Ishibashi Foundation.
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July 2019
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Museum Tower Kyobashi was completed and went into operation in September.
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January 2020
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Artizon Museum (formerly the Bridgestone Museum of Art), operated by the Ishibashi Foundation, was opened in the Museum Tower Kyobashi.
