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Sukegawa Electric Co., Ltd.

助川電気工業株式会社
Ticker
Listed market
TYO
Country
Japan
Employees (consolidated)
217
Related companies
83
§01

Basic information

BASIC
Head office
3333-23 Kamitezuna, Takahagi, Ibaraki 318-0004, Japan
Chief executive
Mitsutoshi Takahashi
Capital
921,100,000  (9 100 million)
Employees (non-consolidated)
217 people
Employees (consolidated)
217 people
Start date
1949-02-03
End date
§02

Websites

1 DOMAINS
§03

Business

10
Sheathed thermocouplesSheathed heatersSheathed microheatersSheathed resistance thermometersSimulated fuel assembliesSodium level gaugesSubstrate heating heaters for liquid crystal displaysLiquid lithium targets for accelerator-based BNCTHeat and mass flow loop systemsProviding manufacturing technology and services based on that technology
§04

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Names without a link are companies not yet registered in OpenBizGraph
§05

Network

NETWORK
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§06

History

67 EVENTS

Founded in Sukegawa-cho, Hitachi City, by Yōkichi Domeki with capital of ¥1 millionSources

Sheathed heater completed and commercializedSources

Japan's first domestically produced sheathed thermocouple completed and commercializedSources

Sheathed microheater completed and commercializedSources

Opened the Osaka Sales OfficeSources

Sheathed resistance thermometer completed and commercialized / Delivered a simulated FBR fuel assembly to the Japan Atomic Energy Research InstituteSources

Completed and began commercial sales of a sheath-type resistance thermometer.Sources

Delivered a simulated fuel assembly for an FBR to the Japan Atomic Energy Research Institute.Sources

Capital increased to ¥100 million / Built a sodium experimental apparatus at the Namekawa PlantSources

Increased capital to ¥100 million.Sources

Constructed a sodium experimental facility at the Namekawa Plant.Sources

Opened the Tokyo Sales OfficeSources

Delivered an ECCS simulated fuel assembly to the Japan Atomic Energy Research Institute / Promoted the Tokyo Sales Office to the Tokyo BranchSources

Delivered an ECCS simulated fuel assembly to the Japan Atomic Energy Research Institute.Sources

Promoted the Tokyo Sales Office to a Tokyo Branch.Sources

Capital increased to ¥150 million / Built a wire-drawing plant in the first phase of construction at the Takahagi Plant / Received the Tanabe Award for Meritorious Invention for developing an induction-type sodium level gaugeSources

Increased capital to ¥150 million.Sources

Established a wire-drawing plant as part of Phase 1 construction at the Takahagi Plant.Sources

Received the Tanabe Invention Merit Award for developing an induction-type sodium level meter.Sources

Exported simulated fuel rods to EG&G in the United States and a sodium level meter to the French Electricity Authority.Sources

Expanded the large nuclear equipment assembly plant (Building C) in the second phase of construction at the Takahagi Plant.Sources

Received the Invention Achievement Award for developing a simulated fuel assembly at the 5th Invention Grand Prize award ceremony, hosted by the Japan Invention Promotion Association and The Nikkan Kogyo Shimbun.Sources

Yokichi Domeki received the Medal with Blue Ribbon for his contributions to the development and advancement of simulated fuel rods.Sources

Exported an electric heating wire manufacturing plant to the Soviet Union / Received the Saikai Memorial Award for developing an annular-flow linear induction electromagnetic pump / Masanori Nozaki became President and Representative Director.Sources

Exported an electric heating wire manufacturing plant to the Soviet Union.Sources

Received the Saikai Memorial Award for developing an annular-flow linear induction electromagnetic pump.Sources

Masanori Nozaki was appointed President and Representative Director.Sources

Received the Director-General of the Science and Technology Agency Award for developing an induction-type sodium level meter.Sources

Increased capital to ¥264 million / Yokichi Domeki received the Research and Development Award at the 1st Outstanding Business Manager Awards / Constructed an office building (now the head office, Building A) at the Takahagi Plant.Sources

Capital increased to ¥264 million.Sources

Yokichi Domeki received the Research and Development Award at the 1st Outstanding Management Award ceremony.Sources

An office building (now the head office, Building A) was constructed at the Takahagi Plant.Sources

Yokichi Domeki received the Order of the Rising Sun, Fourth Class.Sources

Constructed a cleanroom building (Building B) at the Takahagi Plant / Increased capital to ¥341.5 million / Koichi Domeki became President and Representative Director.Sources

A cleanroom building (Building B) was constructed at the Takahagi Plant.Sources

Capital increased to ¥341.5 million.Sources

Koichi Domeki became President and Representative Director.Sources

Opened the Tsukuba Office.Sources

Received the Minister of Labour's Award for Excellence as an outstanding workplace for labor safety.Sources

Registered the shares with the Japan Securities Dealers Association / Increased capital to ¥921.1 million.Sources

The company's shares were registered with the Japan Securities Dealers Association.Sources

Capital increased to ¥921.1 million.Sources

Constructed a plant for assembling temperature sensors and heating equipment at the Takahagi Plant, and relocated that division and head office functions from the Namekawa Plant / Obtained ISO 9001 certification from LRQA.Sources

A plant for assembling temperature sensors and heating equipment was built at the Takahagi Plant, and the relevant division and head office functions were relocated there from the Namekawa Plant.Sources

Obtained ISO 9001 certification from LRQA.Sources

Obtained JCSS accreditation from the Minister of International Trade and Industry.Sources

Listed shares on the JASDAQ Securities Exchange / Obtained ISO 14001 certification / Obtained ASME "U" stamp certification.Sources

The company's shares were listed on the JASDAQ Securities Exchange.Sources

Obtained ISO 14001 certification.Sources

Obtained ASME "U" Stamp certification.Sources

Delivered a simulated fuel assembly (ATLAS) to the Korea Atomic Energy Research Institute for light-water reactor severe accident countermeasures.Sources

Constructed a large equipment assembly plant (Building J) at the Takahagi Plant.Sources

Received the 4th JSME Excellent Product Award from the Japan Society of Mechanical Engineers for the technology and achievements of a simulated reactor fuel assembly.Sources

Constructed an aluminum testing building at the Takahagi Plant.Sources

Delivered a simulated fuel assembly (SMART-ITL CORE HEATER BUNDLE) to the Korea Atomic Energy Research Institute.Sources

A substrate-heating heater for LCDs was completed, and deliveries began.Sources

Developed a liquid lithium target for accelerator-based BNCT jointly with the Tokyo Institute of Technology / Delivered the “Heat and Material Flow Loop System (Oroshhi-2)” to the National Institute for Fusion Science for fusion research / Delivered a simulated fuel assembly (ATLAS2) to the Korea Atomic Energy Research Institute for severe accident countermeasures in light-water reactors / Constructed the Second Aluminum Test Building at the Takahagi PlantSources

Developed a liquid lithium target for accelerator-based BNCT in collaboration with the Tokyo Institute of Technology.Sources

Delivered the "Heat and Mass Flow Loop Facility (Oroshhi-2)" to the National Institute for Fusion Science for fusion research.Sources

Delivered a simulated fuel assembly (ATLAS2) to the Korea Atomic Energy Research Institute as a measure against severe accidents in light water reactors.Sources

A second aluminum test building was constructed at the Takahagi Plant.Sources

Osamu Kotaki was appointed President and Representative Director.Sources

A cafeteria building was completed at the Takahagi Plant and opened as an employee cafeteria.Sources

Delivered a simulated fuel assembly (STELLA2 HeaterBundle) to the Korea Atomic Energy Research Institute for SFR (sodium-cooled fast reactor) experiments.Sources

Constructed a Molten Metal Test Building at the Takahagi Plant.Sources

Listed on the Tokyo Stock Exchange Standard Market.Sources

Mitsutoshi Takahashi was appointed President and Representative Director.Sources

§07

News

5 ARTICLES

Summer Holiday NoticeSources

We will be closed for the summer holidays from Saturday, August 9, to Sunday, August 17, 2025. We may not be able to respond promptly to inquiries received during this period.

Website RelaunchSources

We have relaunched our website. We plan to share a variety of information going forward.

Order Received for Lithium Purification System Demonstration Test EquipmentSources

Sugawara Electric Industry received an order from the Quantum Science and Technology Research and Development Organization to manufacture a lithium purification system demonstration test equipment. The contract was signed on June 9, 2022, with a contract amount of 290 million yen. The equipment will be used to conduct demonstration tests of lithium purification systems required for the design of the target-based purification subsystem of a nuclear fusion neutron source.

Won an Order to Manufacture Sensors for the JT-60SA Vacuum VesselSources

Received an order from the National Institutes for Quantum Science and Technology to manufacture sensors for the JT-60SA vacuum vessel. The contract was signed on July 26, 2022, for ¥124.3 million. The work includes manufacturing in-vessel temperature measuring instruments, attachments for magnetic probes, signal cables, capsule gauges, and a data acquisition system for temperature measurements.

Won Contract to Assemble JT-60SA In-Vessel EquipmentSources

Sukegawa Electric Co., Ltd. received an order from the National Institutes for Quantum Science and Technology for the assembly of JT-60SA in-vessel sensors and plasma-facing components. The contract was signed on February 25, 2022, for a contract amount of 594.22 million yen, with delivery due approximately two years after the start date. The work involves assembling equipment inside the JT-60SA vacuum vessel and will begin after the integrated test operation currently underway at QST.

§08

Public records

GOV
National Tax Agency basic information6050001023279
Source: National Tax Agency Corporate Number Publication Site, basic three itemsSources
Trade name
助川電気工業株式会社
Trade name (kana)
スケガワデンキコウギョウ
Name in English
Corporation type
301
Address
〒317-0051 茨城県日立市滑川本町3丁目19番5号
Postal code
3170051
Prefecture code
08
City code
202
Address outside Japan
Prefecture in English
City in English
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2024-01-10
Change date
2015-10-05
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
Latest record
1
Excluded from search
0
Processing type
01
Correction type
1
Trade name image ID
Address image ID
Sequence number
579979
METI gBizINFO6050001023279
Source: gBizINFO (Ministry of Economy, Trade and Industry)Sources
Corporate number
6050001023279
Trade name
助川電気工業株式会社
Trade name (kana)
スケガワデンキコウギョウ
Trade name (alphabet)
Registry closure date
Reason for registry closure
Registered address
茨城県高萩市大字上手綱字朝山3333番地23
Postal code
3180004
Prefecture
茨城県
Prefecture code
08
City or district
高萩市
City code
214
Street address
大字上手綱字朝山3333番地23
Organisation type
301
Processing type
12
Correction type
0
Status
Representative
代表取締役社長  高橋 光俊
Capital
921100000
Employees
203
Employees (male)
Employees (female)
Business summary
電気機械器具製造業
Website URL
Year founded
Business category
E:製造業
Date established
1949-02-03
Unified government qualification - grade
A|A|A|A
Unified government qualification - business items
101|102|103|104|110|111|112|115|116|117|118|119|121|128|129|201|202|203|204|210|211|212|215|216|218|219|221|228|229|302|303|304|306|314|315|402
Update date
2026-02-16
Key information
6050001023279
§09

Sources & updates

SOURCES
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