Electrical Steel Sheets
We keep advancing
society’s future.
Electrical steel sheets are a material that doesn’t get a lot of visibility.
Yet, in many products, such as automobiles, home appliances, and renewable energy, they are a driving force in society and part of our daily life.
Our products support our lives today and shape the social infrastructure of the tomorrow.
We prioritize safety and quality, refine our technology and equipment, and create value sought after by society.
We will continue to build on the trust we have earned with our customers and work together with our partners to make progress in the future.
As the JFE Group’s No. 1 electrical steel sheet processing center in Japan, we will keep advancing society’s future.
Business
JFE Shoji Electric Steel Co., Ltd. has the processing technology to meet a wide range of needs, from slitting of electrical steel sheet to press processing of motor cores.
With our high quality and stable supply system, we support manufacturing in diverse fields such as automobiles, home appliances, and energy.
Slit Processing
Electrical steel sheets are slit with high precision to fit various applications and specifications.
With excellent dimensional accuracy and consistent quality, our products support the manufacture of parts with advanced functionality in a wide variety of industries.
By utilizing
High precision x Stable operation x Integrated manufacturing technology,
We realize a supply system that meets all requirements for delivery time, quality, and cost
We can handle a wide variety of materials including grain-oriented and non-grain-oriented electrical steel sheets. We process steel sheets into steel strips of the width designated by the customer. We have the equipment capacity to handle a wide variety of steel types, including electrical steel sheets, and we have advanced processing technology and quality assurance functions. Moreover, through our integrated manufacturing system in collaboration with the JFE Group, you can confidently place orders for products ranging from small batches to large quantities.
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High-precision slitting with ±0.1mm tolerance of sheet width and a variety of steel grades
We support a wide variety of steel grades, including cold-rolled steel sheets as well as electrical steel sheets. We offer high-precision slit processing with a sheets width tolerance of ±0.1 mm ensuring both accuracy according to customer specifications and consistent consistent quality.
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From small lot prototyping to mass production
Flexible and consistent ability to respondWe offer flexible support from small lots at the prototype stage through to the mass production phase. In cooperation with JFE Steel, our system achieves rapid delivery and consistent supply to reduce the procurement burden on our customers.
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Support from processing to delivery
Integrated across JapanTwo hub locations, in Nagoya and in Chiba, provide integrated management of processing, packaging, and delivery. We meet our customers’ needs with a consistent supply across Japan and flexible response capabilities.
Quality Assurance and Safety Management for
Slit Facilities
Rigorous quality assurance and safety
management systems
Slitting is a process that machines steel sheets at high speed and requires advanced assurance technology at all times.
We guarantee quality through a multi-layered inspection system that includes inspections at each stage of the process, as well as final inspection, to ensure that we meet customer requirements, specifications, and precision.
In addition, safety measures have been reinforced in terms of both equipment and operations. This ensures worker safety and consistent operation of the production site.
The results of dimensional measurement for each lot including detection of defects, foreign matter adhesion, and holes on steel sheet surfaces are transmitted directly from the measurement devices to the quality assurance system for acceptability judgment.
Safety Enhancements
Reinforced safety fencing
The work area and human guide lines are clearly separated to prevent accidental contact or entanglement.
Enhanced safety sensors for slitting equipment
Sensors detect approaching people and automatically shut down equipment. Higher safety is ensured.
Motor Core Stamping
Press processing technology that meets the precision and performance requirements for motor cores.
Our high precision dies and optimal machining conditions support consistent production of next-generation motors and high-efficiency devices.
Through utilization of Precision molding x High quality x Integrated process support
Our motor core manufacturing system supports performance,
delivery, and reliability
We have achieved high-precision lamination forming using non-grain-oriented electrical steel sheets in our press machining of motor cores, which are indispensable for automobiles and industrial equipment. We provide comprehensive support for our customers’ manufacturing by handling everything from mold and material procurement to just-in-time delivery.
Our Motor Core Plant in the Central Japan Division can handle everything from small-lot prototyping to mass production, and has established an advanced quality control system with high-speed automatic presses and cutting-edge inspection equipment (3D measuring machines and automatic inspection equipment). Furthermore, the JFE Group’s electrical steel sheet network allows us to flexibly respond to Japanese and international supply needs.
Frameworks Underlying our Press Technology
The Motor Core Plant in the Central Japan Division can handle everything from order consolidation to quality design and optimization/standardization of the manufacturing process for stamped motor core products.
We are also actively engaged in research and development into cutting edge manufacturing technologies and constantly pursue quality improvements.
In order to maintain product precision, we also perform in-house maintenance (grinding, adjustment, and assembly) of molds to ensure strict tolerance control.
In addition, we maintain consistent quality by improving our inspection facilities and controlling product variation.
Company Overview
Company Overview
| Name of Company | JFE Shoji Electrical Steel Co., Ltd. |
|---|---|
| President | Maki Otani |
| Date of Establishment | April 1952 |
| Capital | 400 million yen |
| Shareholders | JFE Shoji Corporation: 100% |
| Main Products and Business Lines |
|
| Number of Employees | 158 persons (as of April 1, 2025) |
| Net Sales | FY2022: 11.0 billion yen FY2023: 9.5 billion yen FY2024: 9.9 billion yen |
| Board of Directors | Representative Director and President, Maki Otani Director, Toyohiko Fujisawa Director, Yoshihisa Yamanaka Director, Hisaki Higuchi Director, Takehiro Suzuki Director (non-executive), Atsuro Uemura Director (non-executive), Toshitaka Yonemura Auditor (non-executive), Hiroaki Yano Auditor (non-executive), Hiroki Kidowaki |
Company History
| Capital (million yen) |
||
|---|---|---|
| April 1952 | Ichimiya Kozai Co. established with headquarters in Osaka | 0.5 |
| October 1967 | Became an affiliated company of Kawasaki Steel Corporation | 50 |
| April 1978 | Merged with Kawatetsu Silicon Steel Sheet Industry Co., Ltd. and Keihan Industry Co. Ltd. Company name changed to Kawatetsu Electrical Steel Sheet Co. Ltd. | 300 |
| March 1979 | Relocated and consolidated Shijo Nawate and Kyoto plants to the Kobe Plant | |
| January 1999 | Mizushima Plant established | |
| March | Kobe Plant closed | |
| March 2000 | Capital increase through capitalization of additional paid-in capital | 400 |
| April 2003 | Company name changed to JFE Electric Steel Co., Ltd. | |
| September | Acquired JFE Cormec Corporation from JFE Shoji Corporation | |
| April 2004 | Tokyo Head Office opened in JFE Kuramae Building (Taito-ku, Tokyo) | |
| April 2017 | Became a subsidiary of JFE Shoji Corporation Company name changed to JFE Shoji Electric Steel Co., Ltd. Tokyo Head Office moved to the former JFE Shoji Building (Chiyoda-ku, Tokyo) Kurashiki Plant transferred to JFE Steel Corporation |
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| April 2021 | Osaka Head Office abolished and head office functions consolidated in Tokyo | |
| February 2023 | Head Office moved to Otemachi Financial City North Tower (Chiyoda-ku, Tokyo) | |
Locations
| Head Office | 〒100-0004 9-5, Otemachi 1-chome, Chiyoda-ku, Tokyo Otemachi Financial City North Tower 25F |
|---|---|
| East Japan Division | 〒262-0012 45 Chigusa-cho, Hanamigawa-ku, Chiba City, Chiba Prefecture |
| Central Japan Division | 〒455-0813 442 Zenshin Honmachi, Minato-ku, Nagoya City |
| West Japan Division | 〒530-0003 6-20 Dojima 1-chome, Kita-ku, Osaka City, Osaka Prefecture Dojima Avanza 17F |
About ISO
We received company-wide certification to the international quality assurance standard ISO 9002:1994 edition in November 2000, and passed the transition audit to ISO 9001:2015 edition in November 2017.
In May 2005, we obtained ISO 14001:2004 certification for our environmental management system (Chiba Plant, Nagoya Plant, and Motor Core Plant), and in April 2018, we obtained ISO 14001:2015 certification as a group company under JFE Shoji (Chiba Plant, Nagoya Plant, and Motor Core Plant). In April 2018, JFE Shoji acquired ISO 14001:2015 certification (Chiba Plant, Nagoya Plant, and Motor Core Plant).
Quality Policy
We improve customer satisfaction by clarifying customer requirements and responding promptly and accurately in cooperation with manufacturers and trading companies.
Quality ISO Certification History
November 2000 Company-wide ISO 9002:1994 certification acquired
November 2003 Company-wide ISO 9001:2000 certification acquired
November 2009 Company-wide ISO 9001:2008 certification acquired
November 2017 Company-wide ISO 9001:2015 certification acquired
Environmental Policy
We recognize that environmental problems are important issues common to all humankind, and we aim to contribute to society by striving to preserve the global environment as our responsibility as a corporate citizen.
Envrionmental ISO Certification History
May 2005 Chiba Plant, Nagoya Plant, and Motor Core Plant acquired ISO14001:2004 certification
April 2018 Chiba Plant, Nagoya Plant, and Motor Core Plant acquired ISO14001:2015 certification