Japan Microelectronics Corporation

Our group was founded in 1970 and, under the mission of 'contributing broadly to society through electronic measurement technology,' we provide inspection and measurement solutions related to semiconductors.

Japan Microelectronics, which started with just three people providing maintenance services for electronic devices, focused on semiconductor inspection and precision measurement, and began product development using electronic measurement technology and microfabrication technology. They developed and launched products such as the first probe card and wafer manual probe in Japan.

Started research and development of measurement technology and microfabrication technology for semiconductors

Probe card of that time

Established Toa Electric Co., Ltd. in Meguro-ku, Tokyo, for maintenance of synchroscopes, facsimiles, industrial semiconductors, and vacuum testing equipment

Relocated headquarters to Musashino-shi, Tokyo

Started research and development of measurement technology and microfabrication technology for semiconductors

Started development and sales of semiconductor inspection equipment and precision measuring instruments

Changed company name to Japan Microelectronics Corporation

Patented new probe card development and array, developed cantilever-type probe card

Completed Manual Probe No. 1

Established Hiraga Factory in Hiraga Town, Minamitsugaru-gun, Aomori Prefecture (now Hirakawa City)

Completed Liquid Crystal Display Inspection Equipment No. 1

Established a new Oita Sales Office in Oita City, established a new Hiraoka Factory (current Aomori Factory) in Hiraoka Town, Minamitsugaru District, Aomori Prefecture, opened an Oita Sales Office, established an Oita Factory in Oita City, completed Liquid Crystal Display Inspection Equipment No. 1

Established Kumamoto Sales Office in Kumamoto City (merged with Oita Technology Laboratory in December 2020)

Established Kumamoto Factory in Kumamoto City

Established a Research and Development Center as a research and development base in Mitaka City, Tokyo (September 2012 merged with headquarters and Aomori Matsuzaki Factory)

Development of package probes (test sockets)

Started development of package probes

Established Kansai Sales Office (later renamed Kansai Branch Office) in Chuo Ward, Kobe City (April 2020 merged with headquarters)

Listed shares on the over-the-counter market of the Japan Securities Dealers Association

Consolidated Oita Factory and Oita Sales Office and established Oita Technology Laboratory

Relocated Kumamoto Factory to Mashiki Town, Kamimashiki District, Kumamoto Prefecture, and renamed it Kumamoto Technology Laboratory (September 2012 merged with Oita Technology Laboratory)

Established a subsidiary MDK Co., Ltd. in South Korea (June 2011 merged with MEK Co., Ltd.)

Established a subsidiary, Taiwan MJC Co., Ltd., in Taiwan

Established Ibaraki Technology Laboratory in Makabe District, Ibaraki Prefecture (now part of Chikusei City) (November 2011 merged with Aomori Factory)

Established a Research and Development Center as a research and development base in Mitaka City, Tokyo (September 2012 merged with headquarters and Aomori Matsuzaki Factory)

Established a subsidiary CHINA MJC CO., LTD. in Shanghai, China

Established a subsidiary MJC Electronics Corporation in Texas, USA

Established a subsidiary MJC Tech Corporation in Mitaka City, Tokyo

Added a new building to Aomori Factory

Established a subsidiary MJC Europe GmbH in Saxony, Germany

Established a subsidiary MEK Co., Ltd. in Bucheon City, Gyeonggi Province, South Korea

Developed thin-film solar cell inspection equipment and solar cell wafer inspection equipment

Changed fiscal year end from September 30 to December 31

Announced the construction of a new building at Aomori Factory

Listed on the Tokyo Stock Exchange Prime Market following market reorganization

The new factory of the Korean subsidiary was completed

Established a Sustainability Promotion Office and Advisory Committee to strengthen sustainability promotion system, and completed a new factory for the Korean subsidiary

Revision of corporate philosophy and establishment of sustainability policy