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PROBLEM TO BE SOLVED : To increase a coercive force while minimizing a decline of remanent flux density, in a rare earth permanent magnet. SOLUTION : In a method for producing a rare earth permanent magnet, heat treatment is performed on a sintered magnetic body in a state where a powder mixture is disposed on a surface of the sintered magnetic body, the sintered magnetic body having the composition RaT1bMcBd (R represents a rare earth element, T1 represents Fe or Co, M represents Al or the like, B represents boron, and a, b, c and d represent atomic percentages which are 12≤a≤20, 0≤c≤10 and 4.0≤d≤7.0 and b is the balance), and the powder mixture containing an R2 oxide (R2 represents a rare earth element)and alloy powder having the composition R1iM1j, R1iM1jHk or R1xT2yM1z (R1 represents a rare earth element, M1 represents Al or the like, T2 represents Fe and/or Co, and 15

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