Nippon Tungsten

What Nippon Tungsten does

Nippon Tungsten Co., Ltd. (TYO: 6998) is a Fukuoka-headquartered, Tokyo Stock Exchange-listed materials manufacturer founded in 1931, operating since 1932 as a corporation. The company applies 90+ years of powder metallurgy expertise to produce tungsten and molybdenum products, cemented carbide tools, fine ceramics, and specialty components for industrial customers. Its portfolio is organized into five material categories: (1) tungsten/molybdenum wires, rods, plates, and ribbon; (2) electrical contact products including resistance welding electrodes and C-EDM electrodes, many joined via the proprietary NDB (Non-Defective Bonding) method; (3) cemented carbide tools, anchored by the world-leading NT Die Cutter rotary cutter for sanitary product manufacturing, MAZELLOY for twin-screw extruders, binderless carbide for glass lens molding, and mechanical seal rings; (4) fine ceramics including silicon nitride (NPN-3), porous ceramics for wafer vacuum chucks, high-thermal-conductivity AlN (NPL-3), black ceramic NPZ-96, and magnetic head substrates; and (5) other products such as the FB-ASSIST ultra-fine bubble generator and KABELLOY heavy alloy for radiation shielding.

Name

Nippon Tungsten

Legal name

Nippon Tungsten Co., Ltd.

Website

https://nittan.co.jp

Company type

Public

Founded year

1931

Operating status

Operating

Headcount range

251–500 employees

Short description

Nippon Tungsten (TYO: 6998) is a Fukuoka-based Japanese materials manufacturer, founded 1931, producing tungsten/molybdenum products, cemented carbide tools, fine ceramics, and specialty alloys via powder metallurgy for industrial B2B customers in automotive, electronics, sanitary products, and nuclear fusion.

Ownership category

akta.pro rank

Headquarters

HQ city

Hakata

HQ country

Japan

HQ region

Asia

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Tungsten/Molybdenum Products: Manufacturing and sales of tungsten wire, rods, plates, ribbon, and molybdenum products for lighting, electrical, and electronic applications. Products include filaments for bulbs, discharge lamp electrodes, and welding electrodes.
2. Cemented Carbide Products: Sales of cemented carbide products including NT Die Cutters, long-length carbide blades, mechanical seal rings, and wear-resistant tools for industrial applications.
3. Fine Ceramics Products: Engineering ceramics including alumina, silicon nitride, zirconia, and silicon carbide for mechanical, electrical, and thermal applications in semiconductor and electronic device manufacturing.
4. FB-ASSIST Fine Bubble Generators: Fine bubble generation devices for grinding applications, sold as hardware units with ongoing support and maintenance services.
5. Resistance Welding Electrodes: Tungsten/molybdenum-based resistance welding electrodes for automotive electrical equipment manufacturing, featuring NDB bonding technology for extended electrode life.
6. NDB Technology Licensing: Proprietary NDB bonding technology for joining dissimilar materials, applied to electrodes and adopted for ITER nuclear fusion reactor components.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Nippon Tungsten manufactures and sells tungsten, molybdenum, cemented carbide, and fine ceramic products for industrial applications. The portfolio spans five material categories: tungsten/molybdenum products (wire, rods, plates, ribbon), electrical contact products (resistance welding electrodes, EDM electrodes, heavy alloys), cemented carbide products (NT Die Cutters, MAZELLOY, mechanical seals), fine ceramics (silicon nitride, porous ceramics, magnetic head substrates), and specialty items (FB-ASSIST fine bubble generators, KABELLOY radiation shielding). Products serve automotive, semiconductor, electronics, sanitary products manufacturing, and nuclear fusion applications.

Product overview

Nippon Tungsten (日本タングステン株式会社) is a materials and components manufacturer founded in 1931, based on powder metallurgy technology centered on tungsten and related advanced materials. Its portfolio is organized around five core material categories: (1) Tungsten/Molybdenum Products — including tungsten wire, bar/plate, ribbon, rope, and molybdenum products for lighting, electrical, and high-temperature applications; (2) Electrical Contact Products — including resistance welding electrodes, plasma torch electrodes, EDM electrodes (C-EDM), heavy alloys, and joined products using the proprietary NDB bonding method; (3) Cemented Carbide — including the NT Die Cutter rotary cutter, long cemented carbide products, MAZELLOY wear-resistant alloy for twin-screw extruders, binderless carbide for glass lens molding, mechanical seal rings, and titanium-based corrosion/wear-resistant alloys; (4) Fine Ceramics — including silicon nitride (NPN-3), press mold ceramics (NPZ-28), porous ceramics for vacuum chucks, high-thermal-conductivity AlN (NPL-3), black ceramics (NPZ-96) for halation prevention, and magnetic head substrates; and (5) Other Products — including the FB-ASSIST ultra-fine bubble generator for grinding fluid, Heavy Alloy (KABELLOY) for radiation shielding and weights. The company also publishes technical journals and maintains sustainability initiatives centered on carbon negativity, resource circularity, and digital transformation of manufacturing.

Differentiator

Problem solved

Functional benefit

Brands

• NT Die Cutter: World's first practical cemented carbide rotary cutter for cutting thin materials such as non-woven fabric and films at high speed
• FB-ASSIST
• MAZELLOY
• KABELLOY (壁ロイ)
• NDB Method

Products and services

• Tungsten/Molybdenum Products (タングステン・モリブデン製品) High-melting-point metal products including tungsten wire, bar/plate, ribbon, rope, and molybdenum products used in lighting, electrodes, and electrical applications for industrial manufacturers.
• Electrical Contact Products (電気接点関連製品) Tungsten/molybdenum-based resistance welding electrodes, heavy alloys, plasma torch electrodes, EDM electrodes, and electrical contact materials for switching and welding applications in automotive and electrical machinery manufacturing.
• NT Die Cutter (NTダイカッター) World's first cemented carbide rotary cutter for high-speed cutting of thin materials such as non-woven fabric, films, and paper, widely used in sanitary product manufacturing for feminine care, adult diapers, baby diapers, and masks.
• MAZELLOY A cemented carbide material for twin-screw extruder parts offering excellent wear resistance and corrosion resistance for high-performance plastic production processes, extending component replacement intervals and reducing waste.
• Heavy Alloy (ヘビーアロイ) High-density tungsten-based sintered alloy with specific gravity of approximately 19.3, used for weights, radiation shielding, and counterbalance applications in industrial and medical equipment.
• KABELLOY (壁ロイ) - Radiation Shielding Heavy Alloy Tungsten-based heavy alloy specifically formulated for radiation shielding applications, serving as a lead alternative for medical and industrial radiation protection uses.
• FB-ASSIST Fine Bubble Generator (研削加工用ファインバブル生成器) Ultra-fine bubble (fine bubble) generator for grinding fluid applications, improving machining quality, reducing work-piece deformation, extending dresser intervals, and reducing pump energy consumption in grinding operations.
• NDB Bonded Products (NDB法による接合製品) Products using Nippon Tungsten's proprietary Non-Defective Bonding (NDB) method for direct joining of tungsten to copper, enabling longer electrode life and improved productivity in resistance welding applications.
• Long Carbide Products (長尺超硬合金) Long-length cemented carbide products for cutting blades and industrial tool applications in manufacturing and processing industries.
• Binderless Cemented Carbide for Glass Lens Molding (ガラスレンズ成形金型用バインダレス超硬合金) Binderless cemented carbide material used for precision glass lens molding dies, supporting high-precision optical component production.
• Mechanical Seal Rings (メカニカルシールリング) Cemented carbide and ceramic seal ring components for chemical pumps and mechanical seals, offering corrosion resistance and wear resistance in aggressive chemical environments.
• Silicon Nitride NPN-3 (窒化ケイ素NPN-3) High-strength, wear-resistant silicon nitride ceramic for automotive and industrial wear-resistant tool applications requiring durability under mechanical stress.
• Porous Ceramics (多孔質セラミックス) Porous ceramic vacuum chucks and suction rolls used in semiconductor and electronics manufacturing for wafer handling and processing, including multi-size compatible configurations.
• High Thermal Conductivity Aluminum Nitride NPL-3 (高熱伝導窒化アルミ NPL-3) High thermal conductivity aluminum nitride ceramic for electronic device applications requiring efficient heat dissipation in power electronics and semiconductor packages.
• Black Ceramic for Halation Prevention NPZ-96 (ハレーション対策黒色セラミックス NPZ-96) Black ceramic components for preventing halation (unwanted light reflection) in electronic device inspection and manufacturing equipment.
• Press Mold Ceramic NPZ-28 (プレス金型用セラミックス NPZ-28) Ceramic material designed for press mold parts, offering wear resistance for light-load forming and shearing processes in industrial manufacturing.
• Magnetic Head Substrates (磁気ヘッド用基板) Fine ceramic substrates for magnetic head manufacturing in data storage devices, produced at the Umi Factory which was originally established as a ceramic research institute in 1975.
• EDM Electrode C-EDM (放電加工用電極 C-EDM) Electrical discharge machining electrodes branded C-EDM, designed for high-speed machining with low electrode consumption in precision manufacturing applications.

Quantifiable outcome

• NT Die Cutter provides world's first practical cemented carbide rotary cutter for high-speed cutting with extended service life
• +4 more outcomes

Named customers8 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• ITER (International Thermonuclear Experimental Reactor) ProjectcoreStrategic or Co-development PartnerNippon Tungsten's NDB (Non-Defective Bonding) technology has been adopted for components in the ITER nuclear fusion experimental reactor. ITER is an international project (Japan, EU, US, Russia, South Korea, China, India) aiming to demonstrate the scientific and technological feasibility of nuclear fusion energy. Target operational start is 2025.

Scale indicators10 records

Recent moves14 records

Expansion highlights5 records

Broad incumbents

• NGK Insulators: Major Japanese industrial ceramics manufacturer with broad portfolio including semiconductor manufacturing components, automotive ceramics, and electrical insulators. Overlaps with Nippon Tungsten's fine ceramics business but operates at much larger scale across multiple end markets.
• Kyocera Corporation: Large Japanese manufacturer of fine ceramics, electronic components, and industrial tools. Significant overlap in fine ceramics (alumina, silicon nitride) for semiconductor and industrial applications, though Kyocera operates at much broader scale across consumer electronics, solar, and printing.
• Sumitomo Electric Industries: Large Japanese diversified materials and industrial manufacturer with significant tungsten, carbide, and electrical contact product lines. Broader portfolio includes wires/cables, automotive components, and electronics, but overlaps with Nippon Tungsten in tungsten products and hard metal materials.

Direct peers

• Sandvik AB: Swedish global leader in cemented carbide cutting tools, mining and rock processing, and materials technology. Directly comparable as a tungsten/carbide tooling and wear parts manufacturer serving automotive, aerospace, and general engineering customers worldwide.
• CoorsTek: US-based leading technical ceramics manufacturer serving semiconductor, aerospace, medical, and industrial markets. Directly comparable in fine ceramics portfolio (alumina, aluminum nitride, silicon nitride, zirconia) for electronic component and semiconductor manufacturing applications.
• Kennametal Inc. US-based manufacturer of tungsten carbide tools, inserts, and wear-resistant components for aerospace, defense, transportation, and energy end markets. Highly comparable product portfolio centered on cemented carbide and tungsten-based materials with similar B2B industrial sales model.
• Denka Company Limited: Japanese specialty chemicals and materials manufacturer with overlapping product lines in fine ceramics, electronic materials, and specialty alloys. Comparable in serving semiconductor and electronics manufacturing customers with high-purity specialty materials.
• Plansee Group: Austrian privately-held global leader in refractory metals (tungsten, molybdenum, tantalum, etc.) and cemented carbide products. Direct comparable in tungsten/molybdenum product portfolio, serving similar industrial customers in lighting, electronics, and medical radiation shielding applications.
• Mitsubishi Materials Corporation: Major Japanese tungsten and cemented carbide producer with overlapping product lines in cutting tools, electrical contacts, and advanced materials. Closest large-cap Japanese competitor with comparable powder metallurgy heritage and customer base across automotive and electronics.
• Masan High-Tech Materials (formerly H.C. Starck Tungsten): Vietnamese-headquartered tungsten products manufacturer (acquired H.C. Starck's tungsten business). Direct comparable in tungsten powder, carbides, and heavy alloy products with vertical integration from mining through finished components, serving similar industrial customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks1 record

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/nippon-tungsten-co-ltd-

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nippon Tungsten