Corporate History
1937
Asahi Diamond Industry Co., Ltd. was established in Shinagawa-ku, Tokyo (
), with the aim of manufacturing and selling diamond tools.
), with the aim of manufacturing and selling diamond tools.
1938
Completion of the Yukigaya Plant in Ota Ward, Tokyo
1944
Completion of the Ueno Plant (formerly the Mie Plant) in Ueno City, Mie Prefecture (now Iga City)
Sales of diamond dies begin
Sales of diamond dies begin
1945
Changed the company name to Asahi Kogei Co., Ltd.
1950
Headquarters relocated to Chuo Ward, Tokyo
1951
Launch of diamond bit sales
Launch of diamond wheel sales
Launch of diamond wheel sales
1952
The company name was changed back to Asahi Diamond Industry Co., Ltd.
1953
Electroplating tools sales launched.
1955
Completed construction of the Setagaya Plant in Ikejiri, Setagaya Ward, Tokyo
1956
Launch of diamond blade sales
1961
Vitribond Wheels launched
1965
Completed construction of the Tamagawa Plant in Takatsu Ward, Kawasaki City.
Began sales of rotary dressers.
Began sales of rotary dressers.
1968
Established Taiwan Asahi Diamond Industry in Taiwan
1969
Launch of CBN abrasive products
1972
Joined the management of Sun Diamond Industry Co., Ltd. (now Yamanashi Asahi Diamond Industry Co., Ltd.)
Listed on the Second Section of the Tokyo Stock Exchange
Listed on the Second Section of the Tokyo Stock Exchange
1975
Relocated headquarters to Minato Ward, Tokyo
1976
Began selling diamonds for jewelry
1978
Listed on the First Section of the Tokyo Stock Exchange
1984
Completed construction of the Mie No. 2 Plant in Ueno City, Mie Prefecture (now Iga City)
1988
Relocated headquarters to Chiyoda Ward, Tokyo
1989
Completed construction of the Chiba Tsurumai Plant and Technical Research Institute in Ichihara City, Chiba Prefecture
In 1991, the company relocated its headquarters to the New Otani Garden Court in Kioicho, Chiyoda-ku, Tokyo
1999
Chiba Second Plant completed in Chosei District, Chiba Prefecture
2002
Asahi Diamond America established
Shanghai Asahi Diamond Industry established
Acquired all shares of Asahi Diamond Indonesia
Shanghai Asahi Diamond Industry established
Acquired all shares of Asahi Diamond Indonesia
2003
Launch of CMP Conditioner
2006
Completed construction of the New Mie Plant in Iga City, Mie Prefecture, integrating the Mie Plant and Mie No. 2 Plant
2007
Launch of "EcoMEP" electroplated diamond wire
2011
Acquired additional shares in Asahi Diamond Thailand (currently a consolidated subsidiary)
2013
Acquired all shares of Koremura Co., Ltd.
2015
Asahi Diamond Germany established
Asahi Diamond Scandinavia established
Asahi Diamond Malaysia established
Asahi Diamond Mexico established
Asahi Diamond Scandinavia established
Asahi Diamond Malaysia established
Asahi Diamond Mexico established
2020
The Chiba Plant was completed in Sodegaura City, Chiba Prefecture
2021
Established a Technology Development Center in Takatsu Ward, Kawasaki City
2022
Moved from the First Section to the Prime Market following a review of the Tokyo Stock Exchange’s market classifications
2023
Establishment of Asahi Diamond Vietnam
Establishment of Asahi Diamond India
Establishment of Asahi Diamond India
2026
Relocated headquarters to the Kojimachi Odori Building in Kojimachi, Chiyoda Ward, Tokyo
