MANUFACTURE OF METALLIC MAGNETIC POWDER FOR MAGNETIC RECORDING

• Main Authors: MARUO MASATAKE, FUKITA TOKUO, KOYAMA ARATA
• Format: Patent
• Language: English
• Published: 06.03.1989
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; ELECTRICITY; FILLING PASTES; INDUCTANCES; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INKS; MAGNETS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICS; POLISHES; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING METALLIC POWDER

PURPOSE:To obtain metallic magnetic powder, the mutual sintering of particles of which is inhibited, particles of which retain their shapes and which has excellent magnetic characteristics, by applying a specific bonded treatment onto the surfaces of the particles of iron oxide hydrate or iron oxide...