Asahi Diamond Industry Co., Ltd.

Diamond tools were first imported into Japan in 1907.

First import of diamond tools into Japan

Established Asahi Diamond Industry Co., Ltd. in Shinagawa-ku, Tokyo for the purpose of manufacturing and selling diamond tools

In 1937, Asahi Diamond was founded to support the advancement of the automotive and aviation industries.

Established Asahi Diamond Industrial Co., Ltd. in Shinagawa-ku, Tokyo.

Founding of Asahi Diamond

Establishment of Asahi Diamond Industrial Co., Ltd. in Shinagawa Ward, Tokyo, with the purpose of manufacturing and selling diamond tools

Completed construction of the Snow Valley factory in Ota-ku, Tokyo

Completed construction of the Ueno factory (formerly Mie factory) in Ueno City (now Iga City), Mie Prefecture

Started selling diamond dice

By 1944, it had become a major manufacturer boasting the industry's highest production volume and delivery numbers, and has continued to produce numerous new products that have had a significant impact on the industry to this day.

Completed the Ueno plant (formerly Mie plant) in Ueno City, Mie Prefecture (now Iga City).

Advancement into a major manufacturer boasting industry-leading production volume and delivery numbers

Completion of the Ueno plant (formerly the Mie plant) in Ueno City (now Iga City), Mie Prefecture Launch of diamond dice sales

Changed company name to Asahi Crafts Co., Ltd.

Changed the company name to Asahi Industrial Co., Ltd.

Relocated headquarters to Chuo-ku, Tokyo

Started selling diamond bits and diamond wheels

Started selling diamond bits.

Launch of diamond bit sales Launch of diamond wheel sales

Reverted company name to Asahi Diamond Industry Co., Ltd.

Reverted the company name to Asahi Diamond Industrial Co., Ltd.

Started selling electroplated tools

Started selling electroplated tools.

Completed construction of the Setagaya factory in Setagaya-ku, Tokyo

Completed the Setagaya plant in Ikeshiri, Setagaya-ku, Tokyo.

Completion of the Seiyōgyō plant in Ikeshiri, Setagaya Ward, Tokyo

Started selling diamond blades

Since the 1960s, it expanded its domestic base to meet growing demand and broadened its global perspective through competition with overseas products, technology partnerships, and introductions.

Expansion of domestic infrastructure to meet growing demand, competing with overseas products, and engaging in technology partnerships and introductions, while broadening its vision worldwide

Launched the BitriBond wheel

Completed construction of the Tamagawa factory in Takatsu-ku, Kawasaki City

Started selling rotary dressers

Completed the Muraoka plant in Takatsu-ku, Kawasaki City.

Completion of the Tamagawa plant in Kawasaki City, Kōtō Ward Launch of rotary dresser sales

Established Taiwan Asahi Diamond Industry in Taiwan

Established Taiwan Asahi Diamond Industrial Co., Ltd. in Taiwan.

Started selling CBN grinding products

Participated in management of Sand Diamond Industry Co., Ltd. (now Yamanashi Asahi Diamond Industry Co., Ltd.) and listed on the Second Section of the Tokyo Stock Exchange

Participated in the management of Sand Diamond Industrial Co., Ltd. (now Yamanashi Asahi Diamond Industrial Co., Ltd.) and listed on the Second Section of the Tokyo Stock Exchange.

Headquarters moved to Minato-ku, Tokyo

Launch of jewelry diamond sales

Started selling jewelry-grade diamonds.

Listed on the First Section of the Tokyo Stock Exchange

Listed on the First Section of the Tokyo Stock Exchange.

Completion of Mie Second Factory in Ueno City (now Iga City), Mie Prefecture

Completed the second plant in Ueno City, Mie Prefecture (now Iga City).

Headquarters moved to Chiyoda-ku, Tokyo

Moved headquarters to Chiyoda-ku, Tokyo.

Completion of Chiba Tsurumai Factory and Research Institute in Ichihara City, Chiba Prefecture

Completed the Chiba Tsuruma plant and research institute in Ichihara City, Chiba Prefecture.

Headquarters moved to New Otani Garden Court, Kioi-cho, Chiyoda-ku, Tokyo

Moved headquarters to New Otani Garden Court, Kioi-cho, Chiyoda-ku, Tokyo

Completion of Chiba Second Factory in Nagase-gun, Chiba Prefecture

Completion of the second Chiba plant in Chōsei District, Chiba Prefecture

Established Asahi Diamond America, Shanghai Asahi Diamond Industrial, and acquired all shares of Asahi Diamond Indonesia

Establishment of Asahi Diamond America Establishment of Asahi Diamond Shanghai Industrial Acquisition of 100% of Asahi Diamond Indonesia

Launch of CMP Conditioner

Launch of CMP Conditioner sales

Completion of New Mie Factory, integrating Mie Factory and Mie Second Factory in Iga City, Mie Prefecture

Completion of the new Mie plant, which merged the Mie plant and the second Mie plant in Iga City, Mie Prefecture

Launch of electroplated diamond wire "EcoMEP"

Additional acquisition of shares in Asahi Diamond Thailand (now a consolidated subsidiary){

Acquisition of all shares of Isamu Corporation

Establishment of Asahi Diamond Germany, Scandinavia, Malaysia, and Mexico

Establishment of Asahi Diamond Germany Establishment of Asahi Diamond Scandinavia Establishment of Asahi Diamond Malaysia Establishment of Asahi Diamond Mexico

Completion of the Chiba factory in Sodegaura City, Chiba Prefecture

Completion of the Chiba plant in Sodegaura City, Chiba Prefecture

Establishment of a technology development center in Takatsu Ward, Kawasaki City

Establishment of a technology development center in Kōtō Ward, Kawasaki City

Transition from Market First Division to Prime Market due to review of market classification at the Tokyo Stock Exchange

Transition from the First Section to the Prime Market following a review of market classifications at the Tokyo Stock Exchange

Establishment of Asahi Diamond Vietnam and Asahi Diamond India

Establishment of Asahi Diamond Vietnam Establishment of Asahi Diamond India

Relocation of headquarters to the Kojimachi Oodori Building, Kojimachi, Chiyoda Ward, Tokyo

Relocation of headquarters to the Kojimachi Oodori Building, Kojimachi, Chiyoda Ward, Tokyo