Message from the President
Since its founding in 1974, NB Seimitsu Co., Ltd. has been dedicated to precision stamping dies and precision stamping.
Our technology originates in blanking camera aperture blades: cutting hardened ribbon steel, a hard and thin material, with high precision. Continually refining this technology now supports the manufacture of parts for a wide range of fields, including automotive parts, optical components, and connectors and terminals.
In 1999 we established a production base in Ayutthaya, Thailand, building a system that delivers parts of the same quality from our two bases in Japan and Thailand. By designing and building dies in-house and handling everything through to mass production, we can propose the optimal process for each customer's challenge. This is our strength.
Since becoming President and Representative Director in 2020, I have placed "customer satisfaction" and "technology and quality" at the core of our management, while renewing equipment and passing on our skills. From a single drawing or a single prototype, we will sincerely support your manufacturing.
We look forward to your continued support.
Yosuke Nishimura
President & Representative Director, NB Seimitsu Co., Ltd.
President's Profile
Yosuke Nishimura
President & Representative Director, NB Seimitsu Co., Ltd.
Managing Director, NB Precision (Thailand) Co., Ltd.
Graduated from Tokai University, School of Engineering, Department of Precision Mechanical Engineering (1996)
Hobbies: travel and fishing
In addition to managing NB Seimitsu Co., Ltd. in Japan and NB Precision (Thailand) Co., Ltd. in Ayutthaya, Thailand, Yosuke Nishimura remains directly involved in precision stamping die design.
Since its establishment in 1974, NB Seimitsu has accumulated extensive experience in thin-sheet precision stamping, starting with camera aperture blades, and in the design and manufacture of the precision dies that support it.
Today, our operations in Japan and Thailand provide an integrated manufacturing system covering die design, die manufacturing, and mass-production stamping, supplying precision stamped parts for automotive, optical, electrical and electronic, and industrial applications.
We place particular emphasis on feeding actual production results back into die design. Based on "dies that can actually achieve stable mass production," we work to improve precision, quality, cost and supply stability.
Company Profile
| Company name | NB Seimitsu Co., Ltd. |
| Representative | Yosuke Nishimura, President & Representative Director |
| Address | 3831 Kamiide, Fujinomiya, Shizuoka 418-0103, Japan |
| TEL / FAX | +81-544-54-2121 / +81-544-54-2120 |
| Established | June 21, 1974 |
| Capital | JPY 45 million |
| Employees | 27 (as of October 2026) |
| Directors | Yosuke Nishimura (Representative Director), Ryota Ayukawa (Senior Managing Director), Masumi Okamura (Managing Director), Akane Sano (Director & General Manager) |
| Business | Design and manufacture of precision stamping dies; precision stamping (automotive, industrial equipment, optical equipment, connectors & terminals, etc.) |
| Certification | ISO 9001:2015 (certified October 2019) |
| Main bank | Shizuoka Bank, Fujinomiya Branch |
| Affiliate | NB Precision (Thailand) Co., Ltd. (Ayutthaya, Thailand) |
History
| Jun. 1974 | Founded NB Seimitsu in Saiwai-ku, Kawasaki, Kanagawa |
| Apr. 1976 | Incorporated as NB Seimitsu Co., Ltd. |
| Aug. 1985 | Built a new factory in Tsurumi-ku, Yokohama, and relocated |
| Aug. 1989 | Built a new die factory in Fujinomiya, Shizuoka |
| Aug. 1994 | Added a stamping plant to the Fujinomiya factory and consolidated the head office and all departments there |
| May 1999 | Established NB PRECISION (THAILAND) CO., LTD. in Thailand |
| Oct. 2014 | Introduced Mitsubishi MP2400 ultra-high-precision wire EDM |
| Oct. 2019 | Obtained ISO 9001:2015 certification |
| Mar. 2020 | Yosuke Nishimura appointed President & Representative Director |
| Nov. 2020 | Moved the Thai factory to a new plant in Rojana Industrial Park, Zone 3 |
| Jan. 2022 | Introduced Keyence LM-1000/1100 high-precision image dimension measuring system |
| Feb. 2024 | Introduced Komatsu H1F110-2 AC servo press |
| Jun. 2024 | 50th anniversary of founding |
Corporate Philosophy
Motto: Enriching everyone's life through our technology
By striving to improve our technology every day, we meet our customers' requirements and contribute to the development of society.
Basic Management Policies
- Customer satisfaction: We understand the value our customers seek and provide products and services that satisfy them.
- Respect for people: We respect the initiative and ingenuity of each employee and create an attractive workplace by improving our skills.
- Technology and quality: To meet our customers' needs, we always pursue technology and quality one step ahead.
- Compliance: Based on high ethical and moral standards, we practice fair and open management.
- Social contribution: We contribute to society through environmentally conscious, community-based business activities.
Management Goals
Expand our core technologies with all employees. We call "core technologies" the technologies that support our business and allow us to continuously meet customer needs.
- Taking on cutting-edge processing technologies
- Continuous practice of ISO and 5S activities
- Building an organization that does what it says
- Close cooperation with customers and partner companies
Environmental Policy
- Compliance with environmental laws: In our die manufacturing and stamping activities, we comply with laws, regulations, ordinances and other requirements.
- Efficient use of resources and energy: Recognizing that resources and energy are finite, we use them efficiently, actively pursue saving and recycling, and strive to reduce environmental impact and prevent pollution.
- Building, operating and improving our environmental system: We build an environmental system, set and operate specific objectives and targets in line with this policy, evaluate and review them, and strive for continual improvement of our environmental activities and system.
- Communication and disclosure: We promote environmental education and awareness to raise employees' environmental consciousness, and disclose this policy to the public.
- Green procurement: For purchases related to our business, we focus on avoiding environmental pollutants and ask our suppliers to cooperate in environmental conservation.
Established: March 20, 2020
Yosuke Nishimura, President & Representative Director, NB Seimitsu Co., Ltd.
Access
3831 Kamiide, Fujinomiya, Shizuoka 418-0103, Japan
- About 15 km from Fujinomiya Station on the JR Minobu Line (approx. 25 min by car)
- About 19 km from Shin-Fuji IC on the Shin-Tomei Expressway (approx. 30 min by car)
- About 22 km from Fuji IC on the Tomei Expressway (approx. 35 min by car)