Engineered Materials

Copper Foil Division

Any electronic equipment including PCs and mobile phones, has mounted electronic circuit board placing the very small parts such as IC chips with detailed wiring., Electrolytic copper foil is essential printed wiring board material for this board. From general-purpose products to newly developed products which enable the formation of ultra-fine circuit, we are always leading the market in product development capabilities and a wide assortment. Various business location, development, production, processing and logistics, we have deployed in each region of the country, including Asia, North America.

More

Main products

• Copper foil with carrier film（MicroThin™（MTSD-H、MT-EX））

  

  Main products

  IoT / ElectronicsMobility

  raw materials

  Our MicroThin® copper foil is an extremely thin copper foil of 2 to 5-μm-thickness with carrier film. In Modified Semi Additive Process (MSAP), this foil can be used as base copper to produce ultra-high-precision circuit boards. It is the global standard for ultra-thin copper foils.

  MITSUI KINZOKU Cooper Foil Div.
• Resin-coated copper foil

  

  Main products

  IoT / ElectronicsMobility

  raw materials

  This is a composite material that has a layer of semi-hardened resin applied on a copper foil. Unlike other materials that contain glass cloth, this product is excellent for designing slim substrates and creating vias in circuits. It is used as the outer layer for motherboards in several hundred million mobile phones every year.

  MITSUI KINZOKU Cooper Foil Div.
• Material of capacitors embedded in PWBs (FaradFlex®)

  

  Main products

  IoT / ElectronicsMobility

  raw materials

  This product, when used as voltage and ground planes, offers uniform power distribution and suppresses noises.

  MITSUI KINZOKU Cooper Foil Div.
• Electro-deposited copper foil for printed wiring boards (PWBs)（3EC-III (Global standard foil), VLP Series and HTE Series）

  

  Main products

  IoT / ElectronicsMobilityEnergy

  raw materials

  This product is available in a variety of foil and surface treatment options, such as a low profile copper foil, a copper foil with super fine nodules, for use in various applications.

  MITSUI KINZOKU Cooper Foil Div.

Catalysts Division

Catalysts are defined as substances that promote a chemical reaction without themselves being affected, and are widely used in the field of chemical engineering. Catalysts contribute to the conservation of the global environment, particularly catalysts for detoxifying exhaust gas from automobiles. Demand for the products is rising with current enhancement of environmental regulations around the world.

Main products

• Catalysts（Catalysts used to detoxify various exhaust gases (for automobiles, motorcycles, general-purpose engines, and deodorizers)）

  

  Main products

  IoT / ElectronicsMobilityLife / Environment

  raw materials

  We manufacture and develop catalysts primarily for automobiles (for gasoline and diesel vehicles, and motorcycles) to meet the regulations in countries around the world. We have also been a long-time supplier of catalysts for deodorizing. Meanwhile, we continue to develop advanced catalysts that will meet future regulatory trends.

Engineered Powders Division

Leveraging our expertise in powder control technology, we provide a diverse range of high-performance powders tailored to various applications. Our product lineup includes metal powders such as copper, silver, silver-coated copper and solder powders, which are widely used in electronic devices, as well as hydrogen storage alloys for battery materials.
One of our key strengths is our ability to provide a broad selection of products designed to meet a wide range of industrial needs. In addition to our existing offerings, we have expanded into copper powders for additive manufacturing and negative thermal expansion materials as part of our latest innovations.
We specialize in the development of powders with customized particle sizes and morphologies, ensuring they meet specific customer requirements from development to manufacturing and sale.

More

Main products（Engineered Powders）

• Passstran®（Tin oxide (SnO2), Zinc oxide (ZnO)）

  

  Main products（Engineered Powders）

  IoT / ElectronicsAnalysis / Inspection / Measurement

  raw materials

  We manufacture a range of conductive powders with outstanding optical properties, including transparency and concealment.

  MITSUI KINZOKU Engineered Powders Div.
• Ultra-fine powders for electronic materials（These copper and silver powders were developed using our exclusive wet reaction process and atomizing process. ）

  

  Main products（Engineered Powders）

  IoT / ElectronicsMobilityEnergyRaw materials / Resources / Recycling

  raw materials

  These copper and silver powders were developed using our exclusive wet reaction process and atomizing process.

  MITSUI KINZOKU Engineered Powders Div.

  HIKOSHIMA SMELTING CO., LTD.(Japanese)
• Solder powder（Solder powder, fine solder powder）

  

  Main products（Engineered Powders）

  IoT / ElectronicsMobilityEnergy

  raw materials

  This solder powder is made using a centrifugal spraying system that produces spherical fine powder with little oxidation.

  MITSUI KINZOKU Engineered Powders Div.
• Powder metallurgy（These powders are manufactured by leveraging the atomizing process.）

  

  Main products（Engineered Powders）

  IoT / ElectronicsMobilityLife / EnvironmentRaw materials / Resources / RecyclingParts / Building materials / Structural materials

  raw materialsParts / materials

  These powders are manufactured by leveraging the atomizing process.

  MITSUI KINZOKU Engineered Powders Div.

  Mitsui Kinzoku Die-Casting Technology Co., Ltd.(Japanese)

Main products（Battery Materials）

• Hydrogen storage (absorbing) alloy (MH alloy)

  

  Main products（Battery Materials）

  IoT / ElectronicsMobilityEnergy

  raw materials

  We manufacture and sell hydrogen storage alloy for nickel hydride batteries using high purity materials and advanced process control to satisfy the high quality requirements of automotive use.

  MITSUI KINZOKU Engineered Powders Div.
• Lithium Mangansese Oxide (LMO)

  

  Main products（Battery Materials）

  IoT / ElectronicsMobilityEnergy

  raw materials

  We manufacture and sell Lithium Manganese Oxide (LMO) and Nickel-Lithium (NCM) for high-capacity lithium-ion batteries primarily used for environmentally friendly Electric Vehicles (EV) and Plug-in Hybrid Electric Vehicles (PHEV).

  MITSUI KINZOKU Engineered Powders Div.

Rare Material Division

The Rare Material Division handles high-purity tantalum for SAW filters, cerium-based abrasives for glass polishing of liquid crystal panels and hard disks, NANOBIX™ for polishing SiC semiconductors, and rare earth products (formerly Nippon Yttrium Co., Ltd. products) widely used in semiconductors, electronic components, medical care, etc. We use all rare earths from light to heavy rare earths, and provide products that meet the needs of our customers regardless of the type of oxide, carbide, metal, etc., shape and size.

Main products（Rare Metals）

• Tantalumu and Niobium Oxides and Carbides（1．TSS, TEP, NSS (oxides, white powders) 2．TaC, TaNbC, NbC (carbides, blackish brown powders)）

  

  Main products（Rare Metals）

  IoT / ElectronicsMobilityEnergyRaw materials / Resources / RecyclingAnalysis / Inspection / Measurement

  raw materials

  Separation and purification techniques using solvent extraction equipment are used to extract tantalum and niobium, to produce high purity oxide products. Tantalum and niobium carbide are produced by carbonizing oxides.
• Cerium Oxide Abrasives（MIREK®）

  

  Main products（Rare Metals）

  IoT / ElectronicsMobilityAnalysis / Inspection / Measurement

  raw materials

  This abrasive is based on cerium oxide, and is available in various particle sizes for rough polishing to finishing work. It is used in leading edge industries to polish glass substrates for hard disks and LCD panels.

Main products（Various rare earth products）

• Oxides/Rare Earth Compounds

  

  Main products（Various rare earth products）

  IoT / ElectronicsMobilityEnergyLife / EnvironmentRaw materials / Resources / Recycling

  raw materialsParts / materialsRecycleR & D / Open Innovation

  We offer a wide variety of rare earth oxides and rare earth compounds, including high-purity Y₂O₃, which was first mass-produced and refined in Japan. We propose the best products to meet the various requirements of our customers, including electronic materials, medical, and semiconductor applications.
• Metal Products

  

  Main products（Various rare earth products）

  IoT / ElectronicsMobilityEnergyLife / EnvironmentRaw materials / Resources / Recycling

  raw materialsParts / materialsRecycleR & D / Open Innovation

  Our metal products are manufactured under consistent quality control. Those metal products are used in a variety of industrial applications, including magnetic materials, magneto-optical recording materials, hydrogen storage materials and superconducting materials. We offer products in various shapes according to our customers’ needs and applications, such as blocks, chips, powders, foils and plates.
• Rare Earth Salts/Ceramics

  

  Main products（Various rare earth products）

  IoT / ElectronicsMobilityEnergyLife / EnvironmentRaw materials / Resources / Recycling

  raw materialsParts / materialsRecycleR & D / Open Innovation

  We produce rare earth salts such as chlorides, nitrates, acetates, and in addition to that, compounds such as fluorides and oxyfluorides. The various rare earth salts are widely used for ceramics and electronic materials. We are also able to offer products such as yttrium oxyfluoride, which draws growing interests in the semiconductor field, as well as optical materials and environmental resistant products to meet the needs of our customers.

Ceramics Division

Furnaces are essential for manufacturing ceramics for electronic components which have been in increasingly high demand in recent years. Mitsui Kinzoku manufactures the refractory bricks used to line these furnaces, as well as kiln tools and bricks used for nonferrous metal melting furnaces. We also manufacture Metalofilter(r), a world-class filter known for its highly efficient removal of impurities in molten aluminum. This filter contributes to the manufacture of aluminum beverage cans throughout the world.
Additionally, we are also working with high performance ceramics to make new developments and applications, and to exploit their use.

More

Main products

• Allumina, Silicon Carbide (SiC) refractories（1. AS series (High alumina refractory) 2. MS series (Electro-melting mullite refractory) 3. NS series (Silicate bonded SiC refractory) 4. RS series (Silicon nitride bonded SiC refractory) 5. ZS series (Zirconia refractory) 6. MG series (Electro-melting magnesia refractory)）

  

  Main products

  IoT / ElectronicsEnergyLife / EnvironmentParts / Building materials / Structural materials

  raw materialsParts / materials

  Mitsui Kinzoku manufactures high-quality high-performance and energy-saving refractory materials made from select high-grade materials using proprietary technology and facilities.Read more

  MITSUI KINZOKU Ceramics Div.
• Fine ceramics（1. HC-SN (Silicon nitride fine ceramics) 2. HC-TB (Titanium dioxide fine ceramics) 3. HC-SC (Silicon impregnated silicon carbide fine ceramics) 4. HC-HA (High-grade alumina fine ceramics) 5. HC-ZR (Zirconia fine ceramics) 6. HC-AZ (Fine alumina-zirconia ceramics)）

  

  Main products

  IoT / ElectronicsParts / Building materials / Structural materials

  raw materialsParts / materials

  These materials feature strength and thermal-shock-resistance, which lends them to use as large-size components such as heater tubes and rotors for dissolving aluminum, electro-ceramics kiln tools and structural materials.

  MITSUI KINZOKU Ceramics Div.
• METALOFILTER®, METALOCLEAN®

  

  Main products

  MobilityRaw materials / Resources / RecyclingParts / Building materials / Structural materials

  Parts / materialsmaterials

  In the aluminum industry, customers demand products that are lighter, thinner, stronger, and easier to process. To meet this demand, Mitsui Kinzoku offers Metalofilter for removing inclusions in molten aluminum, and Metaloclean TS to remove hydrogen gas.

  MITSUI KINZOKU Ceramics Div.

PVD Materials Division

The Company as a comprehensive metal manufacturer, all the material in the motif, large, TV high definition progresses, various sizes in applications to demonstrate use of thin film such as a portable, shape, offers a sputtering target of composition.

More

Main products

• Sputtering Targets（1. ITO 2. IGZO 3. Targets for transparent conductive films (ZnO alloy, SnO2 alloy, etc.) 4.Various other targets）

  

  Main products

  IoT / ElectronicsMobilityEnergyAnalysis / Inspection / Measurement

  raw materials

  We manufacture and sell a range of sputtering targets, in compositions such as indium tin oxide (ITO) for depositing transparent conductor films on LCD panels, organic EL panels and touch panels, indium gallium zinc oxide (IGZO) for transparent oxide semiconductors, and various other compositions for purposes such as thin-film solar cells. 

  MITSUI KINZOKU PVD Materials Div.

Affiliated companies

Other affiliates companies of the Engineering Materials Sector, including overseas

More