Koki Company Limited

Kazuma Karube

Tatsuya Baba

Takeshi Yahagi

Yuri Misumi

Motohide Sasaki

A flux containing terpene phenolic resin and having an acid value of 120 mgKOH/g or more is provided. The acid value can be 250 mgKOH/g or less. The terpene phenolic resin can be contained by 0.05 mass % or more and 30 mass % or less. The flux can contain the terpene phenolic resin and another resin component as a rosin component, and an amount of the terpene phenolic resin contained in the rosin component can be 0.1 mass % or more and 80 mass % or less.

Growing community of inventors

Tokyo, Japan

Kazuma Karube