Toyo Kohan Co., Ltd.

Keishi Katsura

Koh Yoshioka

Shinichirou Horie

Etsuro Tsutsumi

Toshifumi Koyanagi

Shunki Obata

Satoko Harada

Misato Ueno

Kyoko Takano

A roughened nickel-plated sheet including a roughened nickel layer on at least one surface of a metal substrate as the outermost layer thereof, the roughened nickel layer being formed of a plurality of nickel protrusions. When the structure of the roughened nickel-plated sheet is observed at height positions with a focused ion beam scanning electron microscope (FIB-SEM), the absolute value of the change rate of the nickel occupancy is equal to or less than a predetermined value, and the nickel occupancy and the number of nickel protrusions present at a height position located 2.0 μm from the base position of the roughened nickel layer toward the surface in the height direction are equal to or more than predetermined values, respectively.

Roughened nickel-plated sheet

Growing community of inventors

Kudamatsu, Japan

Keishi Katsura