Step in our 100-year history of research and development.
Yokohama Denki Kogyo Co., Ltd. established in Yokohama and started manufacturing and distributing electric lamps using the trademark "METRO LAMP"
Brochures issued in 1935
METRO electric bulbs
|June 1923||Changed name to METRO DENKYU KOGYO Co., Ltd.|
Moved in a new location in Mukaiyama, Shibuya-ku, Tokyo because the Great Kanto Earthquake destroyed the existing plant.
Full view of Shibuya Factory around 1930
|January 1944||Moved to a new plant in Anjo City, Aichi.|
|December 1950||JIS approved our electric bulbs for general lighting according to the Industrial Standardization Law.|
|June 1951||METRO DENKI KOGYO Co., Ltd. was established with the Aichi plant as its main facility.
The head office located at 8 Eiraku-cho, Kita-ku in Osaka City.
|November 1953||The director-general of the Science and Technology Agency awarded us with an incentive prize for our contribution to improve the industrial manufacturing standards of Japan.|
Full-scale mass-production began with our success in mass-production of infrared electric bulbs for heaters.
Special bulb at the time
Infrared lamp for heating
|July 1971||The director-general of the Aichi Labor Standards Office awarded us with an incentive prize for our excellent safety management with no accidents on record.|
|April 1973||Obtained land for industrial use in our present location, Anjo-cho, Anjo City, (12,345 square meters) and built a new warehouse (1,300 square meters) to rationalize merchandise management.|
|April 1976||The Small and Medium Enterprise Agency designated us as a model plant for rationalization of small to medium businesses.|
|April 1977||Built a new Aichi plant (5,560 square meters) to meet the needs of our growing business in the present location, moving from Hinode-cho, Anjo City.
1977 Completed the construction of Aichi Factory, and moved the facilities into this factory.
|June 1981||In order to promote utilization of infrared electric bulbs for heaters, we started to manufacture and selling kotatsu heater units.
Heater unit for Kotatsu heaters
|December 1982||Concluded a pollution control agreement with Anjo City to actualize a zero pollution plant.|
|March 1986||Built new warehouses (922 square meters) following increased production of heater units.|
Introduced automatic electric parts inserting machines and began implanting and processing of electric parts on substrates.
Large LED electronic message board
|June 1990||Built a multipurpose plant and warehouse building (1,360 square meters) for full-scale manufacturing of LED related products|
Starting production in China (Dequing, Zhejiang Province) of small-sized electric bulbs.
|June 1995||Launched an environment department following a technical tie-up with Environmental Technology Development Co., Ltd.|
|March 1999||Eliminated the environment department.|
|March 1999||The plants in China obtained ISO 9002.|
Starting production of kotatsu heater units in Malaysia.
Heater unit for Kotatsu heater
|March 2002||The plants in China became too small and moved to grow with increased production. At the same time, product of halogen heaters and large-sized electric bulbs are also move into china plant.|
|April 2002||The plants in China obtained ISO 9001.|
|September 2002||Withdrew from production of infrared electric bulbs after 40 years of production at the Aichi plant.|
Starting production at affiliates in China of Krypton electric bulbs.
|December 2004||The plants in China obtained ISO 14001.|
|June 2005||The head office moved to 11-1, Terada Yokoyama-cho, Anjo City, Aichi.
Starting mass-production and sales of carbon heaters.
The Head office Aichi plant obtained ISO14001.
Pure hydrocarbon heater
|June 2006||Built a research and development center for the research and development of new light sources. Also built a research building (393 square meters) within the grounds of the head office Aichi plant.|
|February 2007||The company was certified as an Aichi Quality company.|
|October 2007||Built a new office (1,898 square meters) for logistics promotion within the grounds of the head office Aichi plant.
2007 Expanded the new office building.
|June 2010||Reviewed the Agreement on Environmental Pollution Control concluded with Anjo City in 1982, and renewed the conclusion.|
|March 2013||Completed the construction of Shimane Factory (1,454m2) on the land (3,526m2) acquired in Un'nan City, Shimane Prefecture, and started the factory operation.|
|November 2014||Developed a heater for low-pressure die casting molds, which was installed at a foundry of a leading auto manufacturer.|
Won the Award of the Director of the Nagoya Municipal Industrial Research Institute at the Resources Recycling Manufacturing Symposium.
Won the Grand Prix of Remarkable Company in Anjo City at the 2014 Anjo Manufacturing Convention.
Won the Award of the Director-General of the Agency for Natural Resources and Energy at the 2015 Energy-Saving Grand Prix (Energy-Saving Case Sector).
High-power mold heater
|May 2016||Joined the Japan Electrical Manufacturers' Association.|
A total of 5,400 m2 of the head office and main building was renovated
on a large scale.
Appearance of the head office
Received the 2019 Aichi Environmental Award Bronze Prize.
Example: Innovations in heating methods and significant reductions
in environmental impact through the development of "Orange Heat ®"
"Orange Heat ®" Sample
|April 2019||Sheet metal processing equipment installed at Aichi Plant.|
|June 2019||End of production of incandescent bulbs.|
In 2019, we received the Machine and Robot Parts Award at the
Cho-monodzukuri Parts Grand Prize.
Award Parts: Orange Heat (infrared carbon lamp heater)
|January 2020||Certified as an AICHI WISH company.|
|January 2020||Received the 2019 Aichi Family Friendly Enterprise Award.|
Received the Energy Conservation Center, Japan Chairman's Award at the Energy Conservation Awards 2020 (Energy Conservation Case Study Category).