Takuro Shinohara

Ihara Construction Industry Co. Ltd. engages in general construction and civil engineering services. The company has operations related to construction design and management. They also handle housing development and real estate businesses. Ihara Construction Industry was established in June 30, 1949 and is based in Shizuoka, Japan. The firm has other offices around Japan.

Part of NIPPON STEEL CORP., Arai Seisakusho Co., Ltd. is a Japanese company that designs and develops high-quality oil seals, O-rings, packing, gaskets, and rubber rollers. The company is based in Tsukubamirai, Japan. Arai Seisakusho's products include valve stem seals and PTFE/resin products (Alfuron), all of which are designed and developed with high quality in mind. The company also has a CSR policy in place.

Part of Kumiai Chemical Industry Co., Ltd., Riken Maintenance Co., Ltd. is a maintenance company based in Shizuoka, JP. Riken Maintenance Co. has several branches located in different areas of Japan. The Japanese company provides various services such as car maintenance, inspection, and repair. The company also offers machinery and equipment maintenance services.

Part of Kumiai Chemical Industry Co., Ltd., Ryochi Sangyo KK is a Japanese company that wholesales drugs and fertilizers. The company is based in Shimonoseki, Japan.

Part of Kumiai Chemical Industry Co., Ltd., Chubu Riken KK operates as a golf club.

Part of Eurofins Scientific SE, Ecopro Research KK is a Japanese company that provides food testing services, including pesticide residue testing, nutrition analyses, and microbiology testing. The company is based in Shizuoka, Japan. Ecopro Research KK was acquired by Eurofins Scientific SE on August 10, 2017.