History | Company Info. | COSEL Co., Ltd.

Month/Year	History
July 1969	Founded as ELCO Co., Ltd. (Capital 2.5 million yen) ELCO stood for "Electronics" and "Control" – our main business being the use of electronics to control devices.
February 1970	Opened Tokyo Sales Office (became a branch in February 1971)
July 1973	Built two-story steel-framed Head Office (total floor area 607 m²) in Kami-Akae Machi, Toyama City, Toyama Prefecture (area 3,487 m²)
August 1977	Opened Osaka Sales Office (became a branch in November 1986)
April 1978	Introduced QC Circle activities Began with 16 circles.
June 1978	Began to specialize in power supply business.
July 1980	Acquired 5,502 m² of land next door to Head Office, and began operations at three-story, steel-framed 2,723 m² plant.
May 1982	Introduced TQC (Total Quality Control)
June 1983	Opened Nagoya Sales Office (became a branch in May 1992) Introduced Policy Management (definition of Long-term Policy and Annual Policy)
July 1985	Opened Tama Sales Office
March 1988	Introduced Toyota Manufacturing Method
March 1989	Completed Tateyama Factory in Tateyama Machi, Toyama Prefecture
May 1990	Established U.S. ELCO., INC. (currently COSEL U.S.A., INC.) in San Jose, California, targeting Silicon Valley, where high-tech industry and venture companies are present in high concentrations.
September 1990	Opened Kyoto Sales Office
April 1992	Company name changed from ELCO Co., Ltd. to COSEL Co., Ltd. Co-Organization (cooperation/teamwork) System Electronics Liveliness CO: Cooperation/Teamwork, S: Systems, E: Electronics, L: Liveliness The initials from these four concepts were taken to make the Company name. The Japanese verb "Cosu" means to go beyond, and so our company means to "Cosu," or go beyond, the original ELCO.
June 1993	Accredited under International Standard ISO 9001, relating to quality control and quality assurance (the first accreditation in Toyama Prefecture).
December 1994	Shares in the Company registered. Additional financing brought capital to 2.055 billion yen.
May 1996	Introduced TMP.
May 1997	Extension offices in Saitama and Nagano changed to Sales Offices.
July 1997	Established COSEL EUROPE GmbH, a sales subsidiary in Germany.
May 1998	Established COSEL ASIA LTD., a sales subsidiary in Hong Kong.
January 1999	Shares listed on the Tokyo Stock Exchange and Nagoya Stock Exchange Market Division 2.
November 1999	Won TPM Excellence 1st Category.
December 1999	Acquired accreditation under International Standard ISO 14001, relating to environmental activities.
May 2000	Shares listed on the Tokyo Stock Exchange and Nagoya Stock Exchange Market Division 1.
May 2002	Head Office extended to a four-story, steel-framed building (total area 3,842.36 m²).
November 2002	Established COSEL Shanghai Electronics Co., Ltd., a sales subsidiary in Shanghai, China.
May 2004	Branches and Extension offices closed, and all sales locations unified into "Sales Offices."
December 2004	Opened Hamamatsu Sales Office.
December 2004	Group-wide Quality Control (GWQC) activities begin, to include partner companies.
March 2005	Began noise filter business.
December 2005	Won the QC Circle Ishikawa Kaoru Award for the first time.
February 2006	Completed compliance with RoHS instructions.
October 2006	Won the QC Circle Managers Award.
May 2007	Tateyama Factory extended to a two-story, steel-framed building (total area 5,259.68 m²).
February 2008	Won the Gold Award at the JHS All-Japan QC Circle Championships.
November 2011	Established SHANGHAI COSEL INTERNATIONAL TRADING CO., LTD., an export subsidiary in Shanghai, China.
December 2011	Established WUXI COSEL ELECTRONICS CO., LTD., a manufacturing subsidiary in Jiangsu Province, China.
June 2013	Kyoto and Kobe Sales Offices merged with Osaka Sales Office.
November 2013	Tachikawa and Atsugi Sales Offices merged with Kawasaki Sales Office.
December 2013	Kawasaki Sales Office changed name to Metropolitan Area Sales Office. Hamamatsu Sales Office moved and changed name to Shizuoka Sales Office.
August 2015	Completed incorporation of Vietnam Plant. Cosel Vietnam Co., Ltd., a transformer-manufacturing subsidiary.
July 2018	Acquired POWERBOX International AB.
August 2018	Built R&D Center(five-story steel-framed, total floor area 8,205.67㎡) in KamiAkae Machi, Toyama City.
October 2018	Began operations at R&D Center.
April 2022	Shares transferred from first section to Prime Market of the Tokyo Stock Exchange due to reorganization of TSE market categories.
June 2022	Opened Kyoto Sales Office.
August 2022	Transitioned from a company with a board of auditors to one with an audit and supervisory committee.