History
| Mar. 1992 | Tomen Devices Corporation was founded for the purpose of marketing semiconductors. |
|---|---|
| Mar. 1993 | Nagoya Sales Office was opened in Naka-ku, Nagoya. |
| Jan. 1995 | Head Office was relocated to 10-5, Horidome-cho 1-chome, Nihonbashi, Chuo-ku, Tokyo. |
| Apr. 1995 | Hong Kong Branch Office was opened. |
| Dec. 1995 | Osaka Sales Office was opened in Chuo-ku, Osaka. |
| Apr. 1996 | Singapore Branch Office was opened. |
| Jan. 2001 | Head Office was relocated to 3-8, Ningyo-cho 1-chome, Nihonbashi, Chuo-ku, Tokyo. |
| Apr. 2001 | Merged into Tomen Devices Corporation (formerly Tansho Co., Ltd.), the pro forma surviving entity, owing to a change in par value of shares. |
| Jun. 2002 | Tomen Devices Shanghai Co., Ltd. was founded in Shanghai, China. Tomen Devices Corporation was listed on JASDAQ. |
| Jan. 2004 | Tomen Devices Corporation obtained ISO 14001 certification for environmental management systems at the Tokyo Head Office, Product Center, Osaka Sales Office and Nagoya Sales Office. |
| Mar. 2004 | Tomen Devices Corporation was listed on the Second Section of the Tokyo Stock Exchange. |
| Mar. 2005 | Tomen Devices Corporation was listed on the First Section of the Tokyo Stock Exchange. |
| Mar. 2007 | Head Office was relocated to 8-12, Harumi 1-chome, Chuo-ku, Tokyo. |
| Mar. 2012 | ATMD (Hong Kong) Ltd. was founded in Hong Kong. |
| Jun. 2012 | ATMD Electronics (Shenzhen) Limited was founded in Shenzhen, China. |
| Dec. 2012 | Tomen Devices Corporation obtained ISO9001 quality management system certification and ISO27001 information security management system certification for the Tokyo Head Office, Product Center, Osaka Sales Office and Nagoya Sales Office. |
| Mar. 2013 | ATMD Electronics (Shanghai) Limited was founded in Shanghai, China. |
| Aug. 2017 | The Nagoya Sales Office was relocated to Nakamura-ku, Nagoya. |
| Apr. 2022 | Transition to the Prime Section of the Tokyo Stock Exchange |
