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The History of Sankosha

April 1930 - Sankosha was established at 22 Shin-Saiwai-cho in Tokyo.
April 1932 - Moved to present location at 4-3-8 Osaki, Shinagawa-ku, Tokyo.
September 1932 - Koshinsha subsidiary was established at Meguro-ku, Tokyo.
June 1939 - The company was incorporated.

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.

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.

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.

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.

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.

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 - Present
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

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Sankosha U.S.A., Inc.,    406 Amapola Avenue, Suite 135,    Torrance, CA 90501,    USA
Phone Toll Free: (888) 711-2436    Phone: (310) 320-1661    Fax: (310) 618-6869    Email: sales@sankosha-usa.com
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