The History of Sankosha

1940

May 1940	Koshinsha factory moved to Kitamagome in Ota-ku and test equipment manufacture began.
November 1946	Became NTT Authorized Cable Terminal Box manufacturer.
November 1947	Became Japan National Railways Authorized “R” Type Protector manufacturer.
April 1948	Developed the world’s first self restorable overvoltage gas tube arrester with a bimetal strip.
June 1948	Improved S Type Arrester and became approved supplier to the electric power companies.

1950

April 1952	Koshinsha was incorporated.
September 1952	Established Telecommunications Equipment Division. Began manufacture of Power Monitoring Systems, Paging Systems, Cordless Telephone and sales to Power Companies, Police Department, etc.
May 1955	Koshinsha developed automatic electric rice cooker which was then sold beginning in October under the Toshiba Corporation brand name.
October 1958	Created and Chaired Japan Telephone and Telegram Public Corporation terminal box suppliers committee.
April 1959	Sanko Tsushinki Company subsidiary was established.

1960

November 1960	Began production at new Sagami Factory.
September 1961	Created and chaired Telecommunications Equipment Committee Cable Materials Sub-committee.
September 1963	Became Japan National Railways Official Supplier of various protective devices for the Tokaido Shinkansen (Bullet Train). Developed cable protectors.
November 1969	Koshinsha opened Omiya Factory. Began manufacture of household electric appliances.

1970

November 1972	Received Hatsumei Kyokai (Invention Institute) “Invention Promotion Award” for the development of gas filled discharge tube manufacturing techniques.
October 1975	Koshinsha’s Omiya Factory became a JIS (Japan Industrial Standards) approved electric oven manufacturer
November 1975	World Products Inc. became an Authorized US Distributor of Sankosha gas tube arresters.
November 1976	Received “Ohm Technical Prize” for static induction powered Airway Obstruction Light.
November 1978	Sankosha Engineering (S) Pte., Ltd. was established in Singapore.
October 1979	Received Hatsumei Kyokai (Invention Institute) “Invention Promotion Award” for the development of Multi-Element Discharge Tube and required manufacturing equipment.

1980

January 1980	Received Rural Electrification Administration (REA) Approval for ceramic gas tube arresters.
November 1984	Became Northern Telecom’s Authorized Distributor in Japan.
October 1985	Koshinsha Co. and Sankosha Tsushinki Co. were consolidated and the company was renamed Sankosha Corporation.
April 1986	Paid-In capital was increased to ¥975,000,000.
January 1987	Sankosha U.S.A., Inc. was established in Los Angeles, California.
April 1987	Developed, manufactured and began selling fiber optic distribution boxes.
August 1988	Krone became an Authorized Distributor of Sankosha gas tube arresters.
August 1988	First issue Sankosha commercial bonds totaling ¥100,000,000.
September 1988	Second issue Sankosha commercial bonds totaling ¥100,000,000.
April 1989	Received Science and Technology Agency Award for research in signal systems using existing power distribution networks.
November 1989	Received Shibusawa Award for 500,000V transmission line current checker development.

1990

March 1990	Third issue Sankosha commercial bonds totaling ¥100,000,000.
May 1991	Franklin Japan Corporation, Weather Information Provider, was established.
September 1994	Opto Techno Co., Ltd. was established.
October 1994	Energy Saving Systems Department was established.
February 1995	US Companies Lightning Location and Protection, Inc. (LLP), Atmospheric Research Systems, Inc. (ARSI) and GeoMet Data Services, Inc. (GDS) were acquired and consolidated to form Global Atmospherics, Inc.
September 1995	P. T. Santelindo Kencana, a joint venture in Indonesia, was established.
February 1998	Provided weather information in support of the 18th Winter Olympic Games at Nagano using Dual Polarization Doppler Weather Radar System.
March 1998	Obtained ISO 9001 Certification

2000

November 2000	Won “48th Electrical Science and Engineering Award” for Development and Operation of Driven-Arc-Type Fault Current Limiter for 6.6 kV Class distribution lines
August 2002	Sagami Factory was renamed Sagami Techno Center
October 2002	Obtained ISO 14001 Certification
August 2003	Established Sankosha office in Hong Kong