Walk Together
Corporate History of Asahi Diamond
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Oct.1937   Asahi Diamond Industrial Co., Ltd. founded in Tokyo’s Shinagawa Ward for manufacturing and        marketing diamond tools.
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June. 1938  Construction of Yukigaya Factory in Ota Ward, Tokyo, begins
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Jan.1944   Ueno Factory (formerly Mie Factory) completed in Ueno City (now Iga City), Mie Prefecture, launching diamond die sales.
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Dec.1945  Corporate name changed to Asahi Kogei
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May 1950  Head office moves to Chuo Ward, Tokyo
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Jan.1951   Diamond bit sales launched.
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Apr.1952   Diamond wheel sales launched.
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May. 1952  Corporate name changed back to Asahi Diamond Industrial
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Feb.1953   Electroplated tool sales launched.
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Oct.1955   Setagaya Factory completed in Ikejiri, Setagaya Ward, Tokyo, to expand diamond bit production.
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May.1956  Diamond blade sales launched.
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Apr.1961   Vitrified bond wheel sales launched
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Aug.1961  ID blade sales launched
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Sept.1965  Tamagawa Factory completed in Takatsu Ward, Kawasaki City, launching rotary dresser sales
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May 1968  Joint venture Taiwan Diamond Industrial Co., Ltd. (now Taiwan Asahi Diamond Industrial Co., Ltd.) founded in Taiwan
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Apr.1969   CBN abrasive powder sales launched
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Sept.1972  Participation in Sun Diamond Kogyo (now Yamanashi Asahi Diamond Industrial Co., Ltd.)
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Oct.1972   Listed on the Second Section of the Tokyo Stock Exchange
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Feb.1975  Head office moves to Minato Ward, Tokyo
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July 1976  Diamond jewelry sales launched
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May 1978  Shinhan Diamond Industrial Co. founded as joint venture in South Korea
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Sept.1978  Listed on the First Section of the Tokyo Stock Exchange
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Apr.1980   TAB tool sales launched
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Aug.1984  Mie Daini Factory completed in Ueno City (now Iga City), Mie Prefecture
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Aug.1988  Head office moves to Chiyoda Ward, Tokyo
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Mar.1989   Chiba Tsurumai Factory and Research and Development Center completed in Ichihara City, Chiba Prefecture
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June. 1989  Wire saw sales launched
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July. 1991  Head office moves to New Otani Garden Court, Kioi-cho, Chiyoda Ward, Tokyo
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Sept.1992  Asahi Diamond Industrial wins the first TSE-listed company award
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June. 1995  Chiba Tsurumai Factory acquires ISO9002 certification
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Sept.1995  Asahi Diamond Industrial wins the fourth TSE-listed company award
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Dec.1995  Mie Factory, Mie No. 2 Factory, and Tamagawa Factory acquire ISO9002 certification
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Mar.1999   Chiba No. 2 Factory completed in Chosei County, Chiba Prefecture
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June. 2001  Second building of Chiba No. 2 Factory completed
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July. 2002  Asahi Diamond America, Inc. founded
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July. 2002  Shanghai Xu Hui Diamond Industrial Co., Ltd. founded.
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July. 2002  Asahi Diamond Industrial acquires all shares in PT. Asahi Diamond Industrial Indonesia
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Jan.2004   All factories in Japan, Yamanashi Asahi Diamond Industrial Co., Ltd., etc. acquire ISO14001        certification
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June. 2006  New Mie Factory completed in Iga City, Mie Prefecture, to integrate Mie and Mie No. 2 Factories
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July. 2006  Hagby-Asahi AB sold to Sandvik AB
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Aug.2006  Tamagawa Plant expansion completed
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June. 2009  Phase 3 building completed at Chiba No. 2 Factory
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Jan.2011  Mie Factory’s new building completed
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July. 2013  Asahi Diamond Industrial acquires all Koremura Co., Ltd. shares
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