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  3. セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)
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セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)

EstablishmentOctober 1994
capital4500Ten thousand
number of employees45
addressTokyo/Taito-ku/6th Floor, Ueno Chuo Building, 7-11-6 Ueno
phone03-5828-6781
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last updated:Aug 07, 2026
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  • Products/Services(215)
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セイワ Company Overview

We aim to be a company in harmony with the environment and society, heading towards an infinite future. We handle a wide range of diverse semiconductors and electronic components.

The development of electronics has given people great dreams and has turned those dreams into reality, one by one. This development has been passed on to the 21st century, inspiring even greater dreams and hopes. I am deeply grateful and delighted to have been able to engage in work that contributes to this segment of the electronics industry. Moving forward, I will continue to serve as a conduit for the appropriate information on semiconductors and electronic components, so that I can help realize humanity's great dreams and support the product and information development of our clients. I am committed to walking alongside our clients and growing together in the information society of the 21st century. However, on the other hand, global environmental issues have become increasingly prominent. As a member of society, I feel the importance of leaving a rich natural environment for the future and preserving the fundamental value of humanity. I am determined to strive towards becoming a company that harmonizes with nature and society as we move towards an endless future.

Business Activities

Sales of semiconductors and electronic components Import and sales of overseas manufacturers' LCD modules, RF modules, etc. Cable processing / assembly / semiconductor lighting services Import of overseas semiconductors and delivery to customers' overseas factories, etc. Location Headquarters: 6th Floor, Ueno Chuo Building, 7-11-6 Ueno, Taito-ku, Tokyo Kansai Branch: 2 Matsumori Building, 4-255 Omiya-cho, Nara City, Nara Prefecture Nagoya Sales Office: 1-18-24 Ichigo Fushimi Building, Naka-ku, Nagoya City, Aichi Prefecture Overseas Office: Room 1601, Building 6, No. 1 Changjiang, Tianshan Road, Xinwu District, Wuxi City, Jiangsu Province Domestic Partner Company Electron Co., Ltd.: 102 Hachimaru Chikuma Building, 1-15-7 Chikuma, Matsumoto City, Nagano Prefecture

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catalog(222)

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OPTOSUPPLY Sankens Equivalent Quick Reference Table

OPTOSUPPLY Sankens Equivalent Quick Reference Table

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OPTOSUPPLY Stanley Equivalent Quick Reference Guide

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OPTOSUPPLY RoHM Equivalent Product Quick Reference Table

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Nippon Seidenki Film Capacitor Product List

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news(1)

スクリーンショット 2024-01-18 144734.png

Launch of a dedicated e-commerce site for CO2 concentration sensors!! For infection control and ventilation guidelines!

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We have launched a dedicated purchase site for CO2 sensors!! https://co2sensor.thebase.in/ The products available for purchase are the following three: ■MT-200H / USB-type CO2 sensor ■MB-350U / CO2 sensor that alerts with sound and light, also measures temperature and humidity ■CD-100L / Displays CO2 concentration on an LCD Please take a look!

May 11, 2021

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Detailed information

Company name セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)
number of employees45
Contact addresspostalcode 110-0005 Tokyo/ Taito-ku/ 6th Floor, Ueno Chuo Building, 7-11-6 UenoView on map TEL:03-5828-6781 FAX:03-5828-6782
Key Partners【Handling Manufacturers】 Nisshinbo Micro Devices, Inc. JRC Mobility, Inc. NJ Components, Inc. Bourns, Inc. Trex Semiconductor, Inc. McDarmid Performance Solutions Japan, Inc. Chiplus Semiconductor Corp. Isocom Components Densitron, Inc. YEEBO Display Ltd. River Electec, Inc. Shoulder Electronics Ltd. Optosupply Nissei Electric Co., Ltd. Good Work Coto Technology Leoco ELT Sensor Fuji Electronics Potens
※ [Contact Information] Head Office | TEL: 03-5828-6781 Kansai Branch | TEL: 0742-35-9277 Nagoya Sales Office | TEL: 052-212-3800
Business LocationsClick here for the list
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