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NETWORK
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History
99 EVENTS
Mekiden was founded in December 1917 by its first president, Joushou Housui
Founding of Meiden
Osaki Factory was established in 1913
Establishment of Osaki Factory
It became a corporation in 1917
Became a corporation.
Founded in December of the 30th year of the Meiji era by the first president, Shigemune Yoshimasa.
Successfully developed the company’s first electric motor. The beginning of Meiden Motors.
The company’s first vertical-axis generator.
Nagoya Factory was established in 1935
Establishment of Nagoya Factory
Shinagawa Factory was established in 1937
Establishment of Shinagawa Factory
Nishio Factory was established in 1939
Establishment of Nishio Factory
The company succeeded in developing its first electric motor, marking the beginning of Mekiden Motors. The first vertical-axis generator
A technical partnership with AEG was formed in 1955
Entered into a technology partnership with AEG (air circuit breakers and transformers).
The headquarters office was opened in Chiyoda, Tokyo in 1958
Established headquarters in Chiyoda-ku, Tokyo.
Numazu Factory was established in 1961, and the transformer factory began operation
Established the Numazu plant; the transformer plant became operational.
An electronics equipment factory was newly established in Numazu in 1967
Opened a new electronic device plant in Numazu.
A technical partnership with GE was formed in 1968
Entered into a technology partnership with GE (VI).
In 1969, SEVCON Corporation entered into a technical partnership (electronic components for forklift trucks)
SEVCON Co. and technical partnership (electrical components for fork trucks)
AEG Co. and technical partnership (silicon carbide rectifiers & processing line)
Adopted power electronics in 1972
Pursuing power electronics
Entered a technology partnership with GE in 1973 (high‑frequency silicon‑controlled inverter)
GE Co. and technical partnership (high‑frequency silicon carbide inverter)
Opened the Gotanda office in 1976
Opening of Gotanda Office
Established the Ota factory in 1977
Establishment of Ota Factory
Started transformer production in Singapore in 1979
Started transformer production in Singapore
Adopted power electronics & mechatronics in 1980
Pursuing power electronics & mechatronics
Held a technology exhibition as a 90th‑anniversary project in 1983
Pursuing power electronics, mechatronics & electronics
Changed the English company name to MEIDENSHA CORPORATION
Hosted a technology exhibition as part of the 90th anniversary project
Built the Comprehensive Research Institute in 1993
Constructed a comprehensive research institute
Relocated headquarters to Chuo‑ku, Tokyo in 1995
Relocated headquarters to Chuo-ku, Tokyo
Celebrated 100th anniversary of founding in 1997
Celebrated 100th anniversary of founding
Launched the New Construction 21 (NC21) mid‑term management plan in 2000
Pursued the new mid‑term management plan "New Construction 21 (NC21)"
Agreed to a partnership with Hitachi Ltd. and Fuji Electric Co., Ltd. in 2001
Agreed to partnership with Hitachi Ltd. and Fuji Electric Co. in the substation and distribution field
Established a joint venture with three companies in the substation and distribution field: Japan AE Power Systems Co.
Divided the substation business and transferred employees, assets, equipment, and some operating rights to Japan AE Power Systems Co.
Merged Meidensha Co., Ltd. and Meiden Engineering Co., Ltd. in 2003, forming the new company Meidensha Co., Ltd.
Merged Meidensha Co. and Meiden Engineering Co., adopting the new company name Meidensha Co.
Established the joint venture MSA Co., Ltd. with ABB in the Alester business in 2004
Established joint venture MSA Co. with ABB in the Arester business
Commenced construction of ThinkPark Tower in partnership with World Trade Center Building Co., Ltd. in 2005
Commenced construction of ThinkPark Tower
Moved headquarters to Osaki, Shinagawa Ward after completion of ThinkPark Tower in 2006
Integrated motor development and manufacturing into Kofu Meidensha Co. through corporate split
Established Meidensha (Hangzhou) Electrical Systems Co., Ltd. in Hangzhou, China, and began motor production
Celebrated 110th anniversary of founding in 2007
Celebrating 110th anniversary of founding
Relocated headquarters to Osaki, Shinagawa Ward with completion of ThinkPark Tower
Keiji Kataoka became Chairman and Junzo Inamura became President in 2008
Keiji Kataoka appointed Chairman and Junzo Inamura appointed President
In 2009, entered into a business and capital partnership with Ono Instruments Co., Ltd.
Signed business and capital partnership agreement with Ono Instruments Co., Ltd. for automotive testing equipment business
Development of Wireless Synchronization Device for Mobile Power Supply Vehicles
Constructed mixed-use commercial facility ThinkPark Tower on former Osaki plant site, 30 stories above ground and 2 below
Launched first commercial electric vehicle drive system
In 2012, dissolved the joint venture with Japan AE Power Systems Co., Ltd. and inherited the substation and distribution business.
Ended joint venture with Japan AE Power Systems Co., Ltd. and inherited substation and distribution business
In 2013, Yusuke Hamasaki became Chairman and President, and Yusuke Enomoto became President.
Yusuke Hamasaki appointed Chairman and Junzo Inamura appointed President
In 2014, invested capital in Prime Electric.
Invested in Prime Electric
In 2015, reorganized the maintenance and service business into two companies: Meiden O&M Co., Ltd. and Meiden Engineering Co., Ltd.
Reorganized maintenance and service business into two companies: Meiden O&M and Meiden Engineering
In 2017, celebrated the 120th anniversary of the company.
Celebrating 120th anniversary of founding
In 2018, Yusuke Hamasaki became Chairman and Ken Mitsuda became President.
Yusuke Hamasaki appointed Chairman and Ken Mitsuda appointed President
In May 2019, established Meidensha (Hangzhou) Drive Technology Co., Ltd.
Established Meidensha (Hangzhou) Drive Technology Co., Ltd.
In June 2019, merged Iemuru Industrial Co., Ltd. as a consolidated subsidiary.
Made Iemuru Industrial Co., Ltd. a consolidated subsidiary
In 2020, founded Meiden Nano Process Innovation Co., Ltd.
Established Meiden Nano Process Innovation Co., Ltd.
Invested in Vietstar Industry Corporation (now VSM)
Establishment of Meiden America Switchgear, Inc.
Established EV plant in Nagoya
In 2023, Ken Mitsuda became Chairman and Executive Officer, and Akio Inoue became President and Executive Officer.
Ken Mitsuda appointed Chairman of Executive Officers and Akio Inoue appointed President of Executive Officers
§07
News
39 ARTICLES
Application of OH Radical Generation Technology Using Pure Ozone Gas and Water Vapor to Oxide Semiconductor Device Fabrication Processes
Mitsubishi Electric and the National Institute of Advanced Industrial Science and Technology applied OH radical generation technology using pure ozone gas and water vapor to a low‑temperature deposition process for indium oxide films on oxide semiconductors, reducing carbon impurities in the film and confirming device operation characteristics with excellent voltage‑cycle stability. This is expected to contribute to the commercialization and mass production of oxide semiconductors.
Excellent Award for Technical Achievement in High-Pressure, High-Capacity PM Motor
Meidensha received the Industrial Division Excellent Award at the 2026 (75th) JEMA Electrical Engineering Technology Achievement Awards for the practical implementation of a high-pressure, high-capacity PM motor that achieves world-class high efficiency. The 1MW prototype motor developed achieved an efficiency of 98.4%.
Launch of Multi-User VR Safety Assembly Training
On October 13, 2026, Meiden Systems Solution, a subsidiary of Meidensha, will begin selling and renting the 'VR Safety Assembly Training' that allows multiple people to experience VR simultaneously. From a management PC, the progress of multiple head-mounted displays can be centrally managed, helping to reduce participants' waiting time and the operational burden on training staff.
Meidensha and BRUSH Form Strategic Partnership for the UK Market
Meidensha and the UK-based BRUSH Group have signed a memorandum of understanding (MOU) to deploy SF₆-free high-voltage vacuum circuit breakers in the UK. Meidensha will manufacture and supply 145 kV products in the future, while BRUSH will handle marketing, sales, installation, testing, commissioning, and after-sales service in the UK.
Notice of Participation in the 2026 Nagasaki Waterworks Exhibition
Meiden Group will exhibit at the 2026 Nagasaki Waterworks Exhibition, held at Dejima Messe Nagasaki from October 21 to 23, 2026. At its booth, the Group will showcase technologies for waterworks facilities and examples of public-private partnerships, as well as exhibits featuring VR. The main exhibits are AQUA SMART CLOUD, REMOTIER, and high-voltage PM motors.
Kenji Ito's new song implemented in 'Sewage Kingdom'
Meidensha will implement a new track by composer Kenji Ito in the game 'Sewage Kingdom', which teaches sewage treatment. The free update will be released sequentially on each platform starting September 30, 2026, and the new song can be enjoyed in the EX stage and boss battles. The collaboration was realized through interactions on social media.
Meidensha Report 2026 Published
Meidensha has published its integrated report, Meidensha Report 2026, which brings together management and financial information with its environmental and social initiatives. The report covers progress on the Medium-Term Management Plan 2027, the company’s vision for 2030, growth strategies and priority investment areas, examples of solving social challenges through people and technology, a discussion among outside directors, and information related to natural capital based on the TNFD recommendations.
Three companies including Meidensha collaborate on a new model for equipment operation
Meidensha, Mitsubishi HC Capital, and Mitsui Sumitomo Marine & Fire Insurance have agreed to build and market a joint scheme combining AI remote monitoring of equipment, integrated service leasing, and a new risk compensation model. Starting in October 2026, they plan to pilot the scheme in specific industries and gradually expand the target areas based on customer feedback.
Game 'Sewage Kingdom' that lets you learn the sewage treatment system by playing wins the Minister of Land, Infrastructure, Transport and Tourism Award <Circular Path Sewage Award> (Public Relations & Education Division)
Game 'Sewage Kingdom' that lets you learn the sewage treatment system by playing wins the Minister of Land, Infrastructure, Transport and Tourism Award <Circular Path Sewage Award> (Public Relations & Education Division)
Support for the Reiwa 8 Kumamoto Earthquake Disaster
Mendeisha Co., Ltd. has decided to donate a total of 10 million yen to Kumamoto Prefecture and other areas to aid in the rescue of victims and the recovery and reconstruction of the disaster area.
§08
Public records
GOV
National Tax Agency basic information4010701009640
Source: National Tax Agency Corporate Number Publication Site, basic three items
Trade name
株式会社明電舎
Trade name (kana)
メイデンシャ
Name in English
MEIDENSHA CORPORATION
Corporation type
301
Address
〒141-0032 東京都品川区大崎２丁目１番１号
Postal code
1410032
Prefecture code
13
City code
109
Address outside Japan
Prefecture in English
Tokyo
City in English
2-1-1, Osaki, Shinagawa ku
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2024-01-16
Change date
2024-01-09
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
令和６年１月１日東京都品川区大崎二丁目８番１号明電商事株式会社（2010701022629）を合併
Latest record
1
Excluded from search
0
Processing type
71
Correction type
1
Trade name image ID
Address image ID
Sequence number
1771349
METI gBizINFO4010701009640
Source: gBizINFO (Ministry of Economy, Trade and Industry)
