Hiroshi Ishihara

Operates as a holding company which provides energy distribution and engineering works through its subsidiaries

Functions as a College/University

Manufactures and installs air conditioning equipment, plumbing, sewerage system and other civil engineering works; distributes computers and computer related products; provides Internet access service

Chubu Engineering Service Co., Ltd. is a comprehensive building management and Japanese engineering company that provides integrated services such as equipment maintenance, renewal construction, building maintenance, plant operation maintenance for hospitals, net zero energy building (ZEB) consulting, and product sales primarily in air conditioning and food equipment. The company is based in Toyohashi City, Japan. The company focuses on extending building lifespans, enhancing asset value, and promoting carbon neutrality through technical solutions and sustainable facility management. Its ZEB consulting supports energy-saving and carbon-neutral initiatives by proposing renovation plans that balance comfort, environmental benefits, and lifecycle costs. Plant operation maintenance services deliver hospital facility management through specialized teams and proprietary systems. The company also offers sales and after-sales support for air conditioning and food equipment, utilizing a broad regional network.

Part of Sala Corp., Techno Systems, Inc. is a Japanese system engineering company established in 1984 that specializes in software solutions primarily for the manufacturing and semiconductor industries, with additional offerings in education and network services. The company is located in Japan. The company provides manufacturing execution systems (MES) such as "Jisseki Hanchou" for real-time production data management, a cloud-based MES for digital transformation and IoT integration, and "mcframe7," a supply chain management package tailored to Japanese manufacturing. Techno Systems also offers communication library software for semiconductor and liquid crystal factories, business intelligence dashboards for data visualization and analysis, and a range of support services including seminars and consultations. The company maintains ISO9001 and ISO27001 certifications and provides solutions for RFID, production scheduling, and web-based manufacturing digitalization.

Engages in general construction works