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HOME Company COMPANY INFORMATION Company Information Message from the President Corporate Philosophy Company Profile Offices History Group Companies Products PRODUCTSTECHNOLOGY Products &＃038; Technology List of Products by Application Steel plate related Tinplate Tin Free Steel（Hi-Top） Laminated Steel Sheet（Hi-Pet） Electro-galvanized Steel Sheet（Silver Top） Nickel-plated Steel Sheet（Ni-Top） Cold Rolled Steel Sheet（TOP） Vinyl Chloride Resin Decorative Steel Sheet（VINYTOP） SF : Steel Foil Functional Materials Aluminum substrates for magnetic disks（MD） Functional film for optics（Fine Cast Film） Functional film for container（Fine Cast Film） New Materials DNA Chip Genetic Analysis System Research & Development List of products under development Sustainability SUSTAINABILITY Sustainability Society Procurement List of procured items The chemical substances (group) which Toyo Kohan regulates (The 8 edition) Inquiry --> HOME Company COMPANY INFORMATION Company Information Message from the President Corporate Philosophy Company Profile Offices History Group Companies Products PRODUCTSTECHNOLOGY Products &＃038; Technology List of Products by Application Steel plate related Tinplate Tin Free Steel（Hi-Top） Laminated Steel Sheet（Hi-Pet） Electro-galvanized Steel Sheet（Silver Top） Nickel-plated Steel Sheet（Ni-Top） Cold Rolled Steel Sheet（TOP） Vinyl Chloride Resin Decorative Steel Sheet（VINYTOP） SF : Steel Foil Functional Materials Aluminum substrates for magnetic disks（MD） Functional film for optics（Fine Cast Film） Functional film for container（Fine Cast Film） New Materials DNA Chip Genetic Analysis System Research & Development List of products under development Sustainability SUSTAINABILITY Sustainability Society Procurement List of procured items The chemical substances (group) which Toyo Kohan regulates (The 8 edition) Inquiry --> --> Products menu Products menu Steel plate related Tinplate Tin Free Steel（Hi-Top） Laminated Steel Sheet（Hi-Pet） Electro-galvanized Steel Sheet（Silver Top） Nickel-plated Steel Sheet（Ni-Top） Cold Rolled Steel Sheet（TOP） Vinyl Chloride Resin Decorative Steel Sheet（VINYTOP） SF : Steel Foil Functional Materials Aluminum substrates for magnetic disks（MD） Functional film for optics（Fine Cast Film） Functional film for container（Fine Cast Film） New Materials DNA Chip Genetic Analysis System Research & Development Research &＃038; Development Ultra-thin Steel Foil Electrolytic NiP Plating Pure Iron Foil Resin surface treatment for metal bonding Iron-based metallic foil for current collectors for all solid-state/advanced LIBs Silver Top for Composite Substrates with Excellent Resin Adhesion Flexible Copper-Clad Laminates (FCCL) Non-electrolytic plating resin film Clad Materials（FINE CLAD） HOMEProducts &＃038; TechnologyAluminum substrates for magnetic disks（MD） PRODUCTS Products & Technology／Functional Materials Aluminum substrates for magnetic disks（MD） Aluminum substrates for magnetic disks, made using Toyo Kohan’s traditional technologies, enable high-capacity storage to support today’s data-driven society. Hard disk drives (HDDs) used to be mainly incorporated in household digital devices such as computers and video recorders, but with the expansion of cloud computing due to the spread of smartphones and the development of communications technology, they are now mainly used in data centers that support our ever-expanding data society, playing an active role as important storage devices that store the data we generate every day. Technological excellence Toyo Kohan&＃8217;s aluminum substrates for magnetic disks, which combine the plating and precision processing technologies we have cultivated with state-of-the-art clean manufacturing processes and quality assurance systems, have been well received both in Japan and abroad for their high-quality materials and technical capabilities. High quality Magnetic disks are made from aluminum substrates with a thin magnetic layer applied to the surface. Production is carried out in a clean room environment with superior cleanliness to achieve the smoothest possible flatness. Applications Hard disk drives As digital transformation (DX) progresses, the amount of data we communicate and generate every day continues to increase. Data centers are the storage destination for this enormous quantity of data, and here magnetic disks play a major role as high-capacity data storage. In order to store the world’s digital data, which increases year-by-year, despite limited space, we are helping to improve storage capacity by making disks ever-thinner. Here too！ MD substrate（data centers） In our digital society, vast amounts of electronic data are just a part of life. At massive data centers, we store cherished photos we take with smartphones, important electronic files from work, and much more.Toyo Kohan’s technology is also utilized to manufacture the countless hard disks installed there. Toyo Kohan Co., Ltd. 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