Best Denso Parts Suppliers in Japan
Tsukuba Diecasting Co., Ltd.
🇯🇵 Japan
19511001-2000 peopleManufacturer/Service Company/Wholesaler/Distributor/Trading CompanyHigh capacity factory
Established brand
Large enterprise group
OEM manufacturer
Shipments
977
Key customer
CONG TY TNHH KHUON DUC TSUKUBA VIET NAM
Key market
🇯🇵 Japan
Description
Tsukuba Diecasting Co., Ltd. is a premier manufacturer and global supplier specializing in high-precision non-ferrous metal die casting. Founded in 1951 and headquartered in Tokyo, Japan, the company has established a significant international footprint with a total workforce of approximately 1,530 employees. It operates multiple production facilities across Japan and Vietnam, providing integrated manufacturing solutions that encompass die design, casting, precision machining, surface treatment, painting, and sub-assembly.
The company specializes in aluminum, magnesium, and zinc alloy die casting, serving diverse sectors including industrial equipment, household appliances, and the motorcycle industry. Notably, Tsukuba Diecasting is a strategic partner to the automotive sector, with a growing focus on electric vehicle (EV) components such as battery housings and motor housings that require advanced heat dissipation. They are recognized as a pioneer in magnesium die casting, offering lightweight and dimensionally accurate components with electromagnetic wave absorption properties.
Operating under a robust quality management system, the company holds IATF 16949 certification, ensuring compliance with rigorous automotive standards. Their capabilities include both large-scale production and flexible, small-quantity manufacturing to meet specific client requirements. With a strong export presence, Tsukuba Diecasting serves major international markets, including North America and Asia, supplying high-quality components to prominent partners such as Alps Alpine and Entrust Precision.
Nihon Seiki Kogyo Co., Ltd.
🇯🇵 Japan
1950501-1000 peopleManufacturerHigh capacity factory
Established brand
OEM manufacturer
Product customization
Shipments
95
Key customer
NIHON SEIKI INDONESIA
Key market
Asia
Description
Nihon Seiki Kogyo Co., Ltd. is a premier Japanese manufacturer specializing in ultra-precision machined parts and assemblies. Founded in 1950 and headquartered in Suwa, Nagano Prefecture, the company has evolved from producing music box components into a global leader in high-precision metalwork. With a workforce of approximately 500 to 1,000 employees across its international network, the company operates manufacturing facilities in Japan, Malaysia, Indonesia, and Thailand to ensure a stable global supply chain.
Wholesale Japan Product Custom Machining Services Steel Part Manufacturing$0.1
Sanki Co., Ltd.
🇯🇵 Japan
1963101-200 peopleManufacturer/Trading CompanyEstablished brand
Product customization
Low MOQ
OEM manufacturer
Shipments
4775
Key customer
CONG TY TNHH SANKI VIET NAM
Key market
North America
Description
Sanki Co., Ltd. is a prominent Japanese manufacturer and trading company headquartered in Nagoya, specializing in industrial automation components and factory equipment. Established in 1963, the company operates with a workforce of 101 to 200 employees and maintains a strong international presence with subsidiaries and offices in the USA and Mexico. Sanki Co., Ltd. is recognized for its expertise in parts feeding technology, utilizing patented designs to deliver energy-saving, long-life, and maintenance-free solutions. Their core product portfolio includes bowl feeders, linear feeders, table feeders, and advanced controllers such as Piezo and electromagnetic variants.
Beyond feeding systems, the company offers a comprehensive range of industrial components, including brake motors, clamp elements, couplings, and vibrating motors. These products serve a diverse array of sectors, ranging from semiconductor production to automobile manufacturing, with a client base that includes major global entities like Denso and Bridgestone. Sanki Co., Ltd. also provides factory automation equipment sales, featuring machine tools and collaborative robots through their 'ROBO PRIDE' initiative.
As a manufacturer with OEM and ODM capabilities, the company excels in high-precision machining and the design of custom-made production equipment. Their services extend to the assembly, modification, and relocation of specialized machinery, such as assembly inspection systems and production data management tools. With a commitment to quality and technical innovation, Sanki Co., Ltd. supports global manufacturing plants with reliable, high-performance industrial solutions.
CS High Quality 220V Linear Flexible Parts Feeder Drive Unit New Condition for Industrial Manufacturing Machinery Industries$155
ULVAC, Inc.
🇯🇵 Japan
20105-10 peopleManufacturer/Trading Company/Service CompanyMultinational enterprise
Eco-friendly supplier
Patented technology
OEM manufacturer
Shipments
422
Key customer
ULVAC SINGAPORE PTE LTD
Key market
🇻🇳 Vietnam
Description
ULVAC, Inc. is a globally recognized manufacturer and service provider specializing in vacuum technology and its diverse industrial applications. Headquartered in Chigasaki, Japan, the company operates an extensive international network across Asia, North America, and Europe. ULVAC provides comprehensive solutions ranging from individual vacuum components to complex manufacturing systems for the semiconductor, electronics, automotive, and pharmaceutical industries. Their core product portfolio includes high-performance vacuum pumps (cryopumps, diffusion, and molecular), vacuum gauges, helium leak detectors, and gas analyzers. On a systemic level, they design and manufacture vacuum heat treatment furnaces for sintering and brazing, vacuum coating systems (CVD/PVD), and specialized equipment for semiconductor and flat panel display production, including mask blanks and atomic layer deposition tools. Beyond manufacturing, the company offers robust technical support, including installation, maintenance, and overhaul services for both their own equipment and other major vacuum brands. With a history of innovation and a commitment to R&D, ULVAC serves a prestigious global clientele including Panasonic, Daikin, and Midea, delivering high-precision tools for thin-film inspection, vacuum freeze-drying, and industrial leak testing.
Mitsui Chemicals, Inc.
🇯🇵 Japan
1997More than 10000 peopleManufacturer/Trading Company/Service CompanyHigh capacity factory
Established brand
Large enterprise group
High-tech enterprise
Shipments
7490
Key customer
MITSUI CHEMICAL AMERICA
Key market
🇯🇵 Japan
Description
Mitsui Chemicals, Inc. is a leading global chemical manufacturer headquartered in Tokyo, Japan, with a history dating back to its founding in 1997. Operating as a diversified enterprise with over 17,000 employees worldwide, the company specializes in high-performance materials and specialty chemicals across four primary business segments: Life & Healthcare Solutions, Mobility Solutions, ICT Solutions, and Basic & Green Materials. The company maintains a robust international presence through a network of subsidiaries and affiliates across North and South America, Europe, and Asia, including seven domestic manufacturing sites in Japan and specialized production bases globally.
The company's extensive product portfolio includes high-performance polymers, elastomers, engineering plastics, and specialty chemicals such as adhesive resins (ADMER™), functional films, and coating materials. Mitsui Chemicals serves a wide array of B2B sectors, providing critical components for the automotive industry (interior skins and brake pads), healthcare (ophthalmic lenses and dental materials), and the semiconductor sector (pellicles and electronic materials). Additionally, the company is a significant provider of agrochemicals and packaging solutions, including barrier resins for food and pharmaceutical applications.
As an R&D-driven organization, Mitsui Chemicals emphasizes innovation and sustainability through its "VISION 2030" strategy, focusing on green chemicals and circular economy initiatives. The company offers comprehensive manufacturing capabilities, including OEM services, custom manufacturing, and mold design. With a strong commitment to quality and technical excellence, Mitsui Chemicals continues to deliver advanced material solutions to global markets, supported by a sophisticated supply chain and regional technical service centers.
MIPELON™ Masterbatch Ultra-high Molecular Weight Polyethylene Fine Particles in a Masterbatch
Taniguchi Plastic Co., Ltd.
🇯🇵 Japan
197151-100 peopleManufacturerEstablished brand
Small batch production
Industry association member
Multinational enterprise
Shipments
50
Key customer
CONG TY TNHH TANIGUCHI VIET NAM
Key market
Asia
Description
Taniguchi Plastic Co., Ltd. is a Japanese manufacturer established in 1971, specializing in expanded polystyrene (EPS) molded products and casting solutions. Headquartered in Kasai, Hyogo, the company operates with a workforce of 51 to 100 employees and maintains a significant international presence through its 100% owned subsidiary, Taniguchi Plastic Vietnam Co., Ltd. The company is ISO 9001 and ISO 14001 certified, reflecting a commitment to high-quality standards and environmental management transferred from its decades of experience in Japan.
Oonishi Kiko Co., Ltd.
🇯🇵 Japan
189011-50 peopleTrading Company/Distributor/Service CompanyEstablished brand
Small batch production
Industry association member
OEM manufacturer
Shipments
71
Key customer
MIC INDUSTRIAL SUPPLY
Key market
Asia
Description
Oonishi Kiko Co., Ltd. is a specialized Japanese trading company and distributor headquartered in Higashiosaka, Osaka. Founded in 1890 and incorporated in 1950, the company has over a century of expertise in the industrial tool sector. Operating with a workforce of approximately 11 to 50 employees and an annual revenue between US$10 million and US$50 million, the firm serves as a critical link between major manufacturers and industrial users, including high-profile clients such as Mitsubishi Heavy Industries, Caterpillar Japan, and Sumitomo Electric Industries.
PIOLAX
🇯🇵 Japan
19332001-5000 peopleManufacturerHigh capacity factory
Established brand
Large enterprise group
OEM manufacturer
Shipments
2737
Key customer
FAURECIA SISTEMAS AUTOMOTRICES DE MEXICO SA DE CV
Key market
North America
Description
PIOLAX is a leading global manufacturer of plastic and metal fastening products, precision springs, and various components, with a strong focus on "elasticity" technologies. Established in 1933 and operating with 2,895 employees, the company has a significant international presence with manufacturing, sales, design, and production facilities across North America, Europe, and Asia. PIOLAX specializes in providing high-quality automotive parts, including trim clips, hose clamps, fuel valves, glove box latches, and dampers, while also serving the medical and consumer & security industries with products like interventional radiology equipment and endoscopic treatment devices. The company is committed to creating lightweight and high-quality products to reduce CO2 emissions and holds certifications such as IATF 16949 and ISO 14001, underscoring its dedication to quality and environmental management. PIOLAX offers comprehensive manufacturing capabilities, including in-house tooling, injection molding, slide forming, stamping, and wire forming, and is a publicly traded company with a top market share in the domestic industry.
OSG Water Tech Co., Ltd.
🇯🇵 Japan
197451-100 peopleManufacturer/Trading Company/Distributor/WholesalerEstablished brand
Eco-friendly supplier
High-tech enterprise
Multinational enterprise
Shipments
33
Key customer
CONG TY TNHH CONG NGHE CON DUONG VIET
Key market
Asia
Description
OSG Water Tech Co., Ltd., established in 1974 and headquartered in Kawagoe, Japan, is a specialized manufacturer and distributor of functional water equipment. As a core manufacturing division of the OSG Group, the company operates a 3,000-5,000 square meter factory and maintains ISO 13485 certification, reflecting its expertise in medical device manufacturing and water treatment technology. The company serves a diverse global market, with a strong presence in Southeast Asia, South Asia, and Eastern Asia.
OSG Water Tech specializes in the planning, development, and production of a wide range of water-related solutions. Its product portfolio is categorized into drinking water systems and hygiene management equipment. Key products include electrolytic hydrogen water generators, alkaline water ionizers, household and commercial water purifiers, and water softeners. For industrial and medical applications, the company manufactures hypochlorous acid water generators and disinfection water systems designed for high-level sanitation.
With a workforce of approximately 50 to 100 employees and annual revenue estimated between US$10 million and US$50 million, the company offers comprehensive OEM and ODM services. OSG Water Tech is recognized for its commitment to research and development, collaborating with academic institutions like the University of Tokyo and supporting major international events such as the Osaka/Kansai Expo. The company provides integrated B2B solutions ranging from household water conditioners to large-scale industrial water treatment systems.
Yajimaya Co.,Ltd.
🇯🇵 Japan
198311-50 peopleWholesaler/Distributor/Trading CompanyEstablished brand
OEM manufacturer
Own brand
Product customization
Shipments
4
Key customer
CONG TY TNHH MOT THANH VIEN MO HINH NHA HANG MODERN
Key market
🇻🇳 Vietnam
Description
Yajimaya Co.,Ltd. is a prominent Japanese wholesaler and trading company headquartered in Sanjo, Niigata Prefecture. With a history dating back to 1907 and formally established in 1983, the company has built a reputation for excellence in the distribution of household goods and professional kitchenware. Operating with a workforce of approximately 35 to 50 employees, Yajimaya serves a diverse clientele including mass retailers, specialized shops, and international buyers.
The company specializes in a vast catalog of over 10,000 items, with a core focus on high-quality Japanese cutlery, cookware, and traditional goods. Key product categories include professional-grade Santoku and Damascus knives, frying pans, woks, lacquerware, and specialized sushi-making tools. Beyond kitchenware, their portfolio extends to home appliances, gardening supplies, outdoor camping gear, and sanitary daily necessities.
Yajimaya distinguishes itself through robust OEM and private brand (PB) development capabilities, collaborating with manufacturers to create original products such as the "Shio no Ne" dried fish maker and various mochi-making appliances. The company maintains a strong international trade presence, particularly in Southeast Asian markets like Vietnam and the Philippines, and utilizes major B2B platforms to facilitate global distribution. Committed to sustainable development and efficient logistics, Yajimaya focuses on providing short lead times and accurate responses to evolving consumer needs.
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