Murata Manufacturing Co., Ltd.

Sumitomo Metal Mining Company, Ltd.

Yoshiyuki Kunifusa

Hiroyuki Tanaka

Masaya Yukinobu

Haruo Nishiyama

Toshiaki Terao

Yuji Watanabe

Shingo Murakami

Junji Ishii

Takahiro Kamata

Tsutomu Tanimitsu

To provide a fine nickel powder for an internal electrode paste of an electronic component, the nickel powder obtained by a wet method and having high crystallinity, excellent sintering characteristics, and heat-shrinking characteristics. The nickel powder is obtained by precipitating nickel by a reduction reaction in a reaction solution including at least water-soluble nickel salt, salt of metal nobler than nickel, hydrazine as a reducing agent, and alkali metal hydroxide as a pH adjusting agent and water; the reaction solution is prepared by mixing a nickel salt solution including the water-soluble nickel salt and the salt of metal nobler than nickel with a mixed reducing agent solution including hydrazine and alkali metal hydroxide; and the hydrazine is additionally added to the reaction solution after a reduction reaction initiates in the reaction solution.

Nickel powder, method for manufacturing nickel powder, internal electrode paste using nickel powder, and electronic component

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Kyoto, Japan

Yoshiyuki Kunifusa