Hi-Mecha

For lithium-ion pouch cells it makes electrode stacking (bagging) machines that wrap positive electrodes in ceramic separator and stack them with negative electrodes, ultrasonic tab welders, pouch forming machines and three-side sealing machines. It also supplies equipment for capacitors, semiconductors and other energy devices, and says it holds about 70% of the global market for tantalum capacitor manufacturing equipment. Founded in 1972, it is based in Yonezawa, Yamagata.

The 2025 Battery Report lists Hi-Mecha among Japanese battery equipment makers for stacking and packaging.