Yasuyuki Sakai

Part of Maruichi Steel Tube Ltd., Maruichi Kohan Ltd. is a Japanese company that manufactures and sells high-quality steel pipes, including taper poles and processed products, as well as sholecular pipes for mechanical structures. The company's official website provides information on their value creation mechanism and material processing process. The company aims to contribute to society through their products.

Part of Maruichi Steel Tube Ltd., Kyushu Maruichi Steel Tube Ltd. manufactures and markets specialized steel structures and pipes.

Kobelco Steel Tube Co., Ltd. engages in the manufacture and sale of seamless stainless steel tubes and pipes in a variety of alloys. Its products include precision tubes, specialty tubes, clean pipes, welded titanium tubes, secondary tube forming products, U-bent tubes, low-finned tubes and others. The firm products are used in various industries, such as petrochemical, food processing, chemical, energy, machinery, aerospace, nuclear power plants, and semiconductor in Japan and internationally. The company was founded on February 1,1959 and is headquartered in Tokyo, Japan.

Nippon Venture Capital Corp. (NVCC) is an independent venture capital firm headquartered in Tokyo, Japan. The firm was established in 1996.