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  3. サンコーシヤ
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サンコーシヤ

EstablishmentJune 1939
capital97500Ten thousand
number of employees642
addressTokyo/Shinagawa/18th floor, Osaki With Tower, 2-11-1 Osaki
phone03-3491-2525
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last updated:Jun 15, 2026
サンコーシヤlogo
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  • Products/Services(40)
  • catalog(35)
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サンコーシヤ Company Profile

We are the only "comprehensive lightning protection company" that can provide everything from lightning observation and research to product supply, construction, and maintenance in a consistent manner.

Since its establishment in 1930, Sanko Shiya has expanded its business in response to the needs of the times, ranging from the design and manufacturing of communication safety devices and lightning rods to the design and manufacturing of meteorological observation instruments and optical technology-related equipment. Additionally, we established Franklin Japan (in Sagamihara City), a lightning and meteorological information company, and provide high-precision lightning strike information services through a lightning observation network installed across Japan, solidifying our position as the world's only comprehensive company related to 'lightning,' from observation to protection.

Business Activities

■Manufacturing, sales, and construction of lightning protection products, equipment, and lightning meteorological observation instruments/devices ■Manufacturing, sales, and construction of telecommunications equipment and facilities ■Manufacturing, sales, and construction of measurement and signaling equipment ■Research, study, and consulting services related to lightning meteorology, geological phenomena, and lightning damage ■Development of computer hardware and software associated with meteorological information services

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Products/Services (40)

Lightning-resistant transformer (cabinet type) STC model product image
Lightning-resistant transformer (cabinet type) STC model
Low-intensity aviation obstruction light SA-OM3C-4A product image
Low-intensity aviation obstruction light SA-OM3C-4A
Fuse for JIS Class II SPD product image
Fuse for JIS Class II SPD
Fuse for JIS Class I SPD product image
Fuse for JIS Class I SPD

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catalog(35)

Survey responses are required to view e-book details. Click to view the e-book.

White aviation obstruction light "FX-7SC-20K type"

White aviation obstruction light "FX-7SC-20K type"

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SPD Catalog for English

SPD Catalog for English

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GDT Catalog for English

GDT Catalog for English

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Sankosha Corporation General Catalog ver.2

Sankosha Corporation General Catalog ver.2

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news(5)

スクリーンショット 2026-08-19 225303.png

The product page for the coaxial SPD has been updated with a "List of Supported Frequency Bands."

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The product page for the coaxial SPD has been updated with a "List of Supported Frequency Bands."

Aug 19, 2026

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We have published the communication SPD ZP series (UL certified products).

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For details, please visit our company website.

Aug 17, 2026

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雷しゃがみ推奨方針見直し.png

Regarding the review of the recommended policy on "Raishagami."

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As one of the emergency safety measures during thunderstorms, our company has recommended the so-called "thunder crouch" (a posture of crouching low with feet together). However, considering cases of delayed evacuation, recent research findings, and the views of domestic and international disaster prevention and specialized agencies, we will no longer recommend the "thunder crouch" and will make obtaining thunder information and evacuating to safe places our basic policy for reducing thunder-related damage. Safety measures during thunderstorms (prioritizing evacuation) - Early detection of signs of thunder - Quickly evacuating to a safe place such as indoors or in a vehicle when thunder is expected - Checking weather information in advance during outdoor activities and refraining from risky behavior We will continue to strive to provide and disseminate information that contributes to ensuring your safety based on the latest scientific knowledge and disaster prevention perspectives. For more details, please refer to the information provided by our group company, Franklin Japan Co., Ltd.

Jun 15, 2026

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Detailed information

Company name サンコーシヤ
number of employees642
Contact addresspostalcode 141-0032 Tokyo/ Shinagawa/ 18th floor, Osaki With Tower, 2-11-1 OsakiView on map TEL:03-3491-2525 FAX:03-5496-4289
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