About us Who We Are
Sakai Wire Co., Ltd. specializes in cold-drawing fine and ultra-fine metal wire, with stainless steel at its core.
We have dedicated ourselves to wire-drawing technology since our establishment in 1950.
Mission Our Mission
We exist to serve our customers through a singular, specialized commitment:
Metal wires — Fine wires — Ultra-fine wires.
This focused expertise defines who we are and why we continue to grow.
Our Belief
We uphold the spirit of Made in Japan—craftsmanship that earns genuine recognition:
“This is truly good.”
Quality is not a slogan for us; it is a conviction rooted in precision, integrity, and pride.
Our Values
- Secure
- Safe
- Trust
- Reliance
These principles guide every product we create and every relationship we build.
Our Character
We are single-minded in our craft—dedicated, persistent, even stubborn in our pursuit of excellence. Yet we have endured since 1950 because we are also flexible, adapting to meet the evolving needs of our customers.
As long as our work brings value and satisfaction, we will continue striving forward.
Philosophy Management Philosophy
1. Excellence in Quality and Value
We are committed to uncompromising quality and disciplined cost awareness, delivering a comprehensive range of wire products that consistently fulfill customer expectations and contribute to industrial advancement.
2. Service, Respect, and Social Relevance
We engage customers and colleagues with a spirit of service, respect, and genuine consideration. By responding flexibly to changing environments, we strive to remain a company that society continually relies on and values.
3. Growth, Challenge, and Shared Well-Being
We embrace challenges with a positive mindset, fostering the growth of individuals and the organization alike. Our aim is to build a company that realizes and shares happiness, creating a workplace and a future where people thrive together.
Company Company Profile
- Company Name
- Sakai Wire Co., Ltd.
- Founded / Incorporated
- Founded: February 1950 / Incorporated: March 1958
- Head Office
- 97-3 Imago-Cho, Yamatokoriyama-City, Nara 639-1031, Japan
- TEL / FAX
- TEL +81-743-56-8888 / FAX +81-743-56-6077
- Capital
- 30 million yen
- Executives
-
- President & CEO / Hisaaki Sakai
- Managing Director / Takao Sakai
- Director / Yuko Sakai
- Employees
- 44
- Annual Production Volume
- Approx. 1,000 tons
- Business Activities
-
- Cold drawing of metal wire, including heat treatment
- Manufacturing and sales of fine to ultra-fine wire
- Main Banks
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- Resona Bank, Yamato-Koriyama Branch
- Japan Finance Corporation, Nara Branch
- Nanto Bank, Tsutsui Branch
- Kyoto Bank, Yamato-Koriyama Branch
- Nara Chuo Shinkin Bank, Yuzaki Branch
- Factory Facilities
-
- Site Area: 4,910 m²
- Building Area: 2,435 m² (including factory buildings, storage, and office buildings)
97-3 Imago-Cho, Yamatokoriyama-City, Nara 639-1031, Japan
History Company History
For more than seven decades, our company has continued to evolve—driven by craftsmanship, innovation, and an unwavering commitment to quality. What began in 1950 as a small wire-drawing workshop in Hyogo, Japan, has grown into a trusted manufacturer of advanced stainless steel and specialty fine wires serving industries across Japan and beyond.
Founding and Early Growth
Our journey began in 1950, when the Sakai family established Sakai Wire Drawing Works. As demand for higher-performance materials increased, we relocated to Osaka and incorporated as Sakai Wire Co., Ltd., shifting our focus from non-ferrous metals to stainless steel wire—laying the foundation for our future expertise.
Throughout the 1960s and 1970s, we expanded our production capabilities, opened new facilities in Osaka and Nara, and invested in advanced equipment. These upgrades enabled us to produce finer and more diverse wire products, entering new markets such as electric heating wire and hard steel wire.
Building a Modern Production Base
In 1985, we consolidated our operations at a newly built headquarters and factory building in Yamato-Koriyama, Nara. This milestone marked a major step toward modernized production, enhanced quality control, and streamlined operations.
By the late 1980s, we had entered the ultra-fine electronic materials market, introducing sensor-equipped systems and promoting unmanned production—well ahead of industry trends.
Innovation Through the Heisei Era
The 1990s and 2000s were defined by continuous innovation. We expanded into titanium fine wire, introduced new spring wire technologies, and launched a processed-products business utilizing stainless steel fine wire. Our commitment to quality was recognized through ISO 9001 certifications (2000, 2008, 2015).
Digital transformation accelerated with the introduction of the SUP-core IT system and the company-wide e-plus-1 reform project. During this period, we also earned recognition from regional organizations, received multiple manufacturing subsidies, and strengthened ties with the local community through sponsorships and cultural contributions.
Advancing into the Reiwa Era
Entering the Reiwa era, we continued to push boundaries in ultra-fine wire manufacturing—achieving mass-production capabilities for medical-grade stainless steel wires used in catheter guidewires. We expanded our presence on B2B platforms, introduced next-generation wet wire-drawing machines, and deepened engagement with local education through hands-on manufacturing events for children.
Our commitment to sustainability and workplace excellence was formalized with the publication of our Environmental Philosophy & Policy and our registration as a Nara Prefecture Employee Shine Workplace Promotion Company.
Digital Transformation and Ultra-Fine Wire Leadership
Recent years have seen rapid progress in automation and smart manufacturing. We introduced automatic rewinding systems, IoT-based diameter monitoring, and AI-enhanced surface inspection—strengthening our position as a leader in precision wire manufacturing.
By 2025 and 2026, we achieved production milestones with SUS304 ultra-fine wires as thin as φ0.012 mm (≈0.00047 inch) and φ0.011 mm (≈0.00043 inch), demonstrating world-class technical capability.
In 2026, we were certified as a Health & Productivity Management Outstanding Organization, reflecting our dedication not only to manufacturing excellence but also to the well-being of our employees.
Quality Quality Policy
Delivering high customer satisfaction
and strengthening our management foundation.
We go forward
step by step.
Our Quality Policy has remained unchanged since the day we first obtained ISO certification. With customer satisfaction at the center of everything we do, we continuously advance our Daily Improvement Activities.
We follow the PDCA cycle as our fundamental approach:
Before the PDCA cycle begins, we believe two elements come first: “Think”—to reflect deeply, and “Dream”—to envision the future we aim to create.
Guided by these values, our PDCA cycle turns every day. We will continue striving for excellence, and we sincerely appreciate your continued expectations and support.
ISO ISO Certification History
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① ISO 9001:2000 Transition
In January 2003, we completed our transition to the ISO 9001:2000 standard, strengthening our quality management foundation.
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② ISO 9001:2008 Transition
In November 2009, we advanced to ISO 9001:2008, further enhancing process control and operational consistency.
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③ ISO 9001:2015 Transition
In January 2018, we transitioned to ISO 9001:2015, aligning our system with global best practices and risk-based thinking.
Environment Environmental Philosophy & Policy
Environmental Philosophy
We recognize that preserving the global environment is one of the most critical challenges shared by all humanity. To fulfill our social responsibility, we conduct all business activities with deep respect for the environment and actively work to reduce our environmental impact.
Guided by this philosophy, we ensure that every aspect of our operations is carried out in a manner that minimizes our environmental footprint. Inspired by the slogan “Blue skies, clean water, and beautiful nature for our children,” we establish the following policies to achieve our environmental goals.
Environmental Policy
- Environmentally Conscious Manufacturing — In all business activities—including the manufacturing of metal fine wires, wire drawing of metal materials, prototyping, design development, production, and sales—we prioritize environmentally responsible wire drawing, improve energy efficiency, and reduce and recycle waste.
- Compliance and Responsibility — We comply with all applicable environmental laws, regulations, and other requirements to which our company agrees.
- Objectives, Planning, and Continuous Improvement — For significant environmental aspects, we establish environmental objectives and plans within technically and economically feasible limits. These are reviewed regularly, and we take action toward continuous improvement.
- Priority Initiatives — We place priority on the following initiatives to reduce environmental impact and promote ongoing improvement:
- Energy reduction through more efficient work processes
- Energy-efficient equipment and improvement of existing facilities
- Environmentally conscious procurement of materials and consumables
- Environmentally considerate products that account for manufacturing, delivery, and post-use container collection
- Eco-friendly purchasing of recyclable and reusable products
- Communication and Disclosure — This Environmental Policy is communicated throughout the company and disclosed externally. We take full responsibility for its implementation.
Established: February 1, 2023
