Shigeo Yamamoto

Gyosei & Co., also known as the Hoshi Group, is a professional organization based in Tokyo, Japan that provides consulting, tax, and audit services. The Star Audit Corporation, a part of the Hoshi Group, offers various services such as financial advisory, audit, and guarantee operations, including IPO and listing of stock. The Japanese company also provides consulting services in collaboration with the Star Consulting Co., Ltd. The Hoshi Group contributes to the healthy development of the capital market and local communities by supporting healthy business activities. The private company makes use of original methods and tools to provide efficient and high-quality audits according to the actual situation of the client. The company also provides guidance for the achievement of stock listing based on the current situation and target internal management system, without being bound by affiliated overseas farm audit tools.

Osaka Vacuum Ltd. develops, manufactures and maintains vacuum systems and vacuum pumps. Its products include turbo molecular pumps, dry vacuum pumps, roots vacuum pumps, oil-sealed rotary vacuum pumps, liquid-ring vacuum pumps, ejectors, vacuum systems and vacuum pumping systems. The company was founded on September 19, 1950 and is headquartered in Osaka, Japan.

Part of Sanyo Denki Co., Ltd., SANYO Denki Techno Service Co., Ltd. engages in the development, manufacture and sale of electric machinery & equipment. The company is based in Nagano, Japan.