chemistry lab in Tokyo, Chiyoda

日立化成（株）は、半導体用・ディスプレイ用材料、プリント配線板、銅張積層板、感光性フィルム、機能性樹脂、粘着フィルム、カーボン・セラミックス、自動車関連製品など幅広い分野で事業を展開している化学メーカーです。

Sigma-Aldrich is a leading Life Science and High Technology company. Our biochemical and organic chemical products are used in scientific research and as key components in manufacturing.

The Dow Chemical Company is a leader in specialty chemicals delivering products and solutions to markets such as electronics, water, packaging, energy, and coatings.