To compete with the Kawasaki Ki-61 as a possible new light fighter for the Imperial Japanese Army, Nakajima designer T. Koyama developed the Ki-62.

[1] The design, a low-wing, single-seat monoplane with a bubble canopy powered by an 877-kilowatt (1,175-hp) Kawasaki Ha-40 liquid-cooled engine, showed promise, but Nakajima discontinued development of the Ki-62 in order to focus on production of its Ki-43 and Ki-44 fighters.

[2] Nakajima also planned the Ki-63, a version of the Ki-62 powered by a 784 kW (1,051 hp) Mitsubishi Ha-102 radial engine, but did not pursue the design.

[2] Data from Japanese Aircraft of the Pacific War[2]General characteristics Performance

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