Taikisha Ltd (Taikisha) designs, constructs, supervises, manufactures, processes, sells, imports, and exports air-conditioning, ventilation, refrigeration, cleanroom, sanitation, fire-protection, cogeneration, painting-plant, exhaust-treatment, wastewater-treatment, electrical, instrumentation, and building systems. The company serves industries such as office buildings, commercial facilities, schools, hospitals, hotels, art galleries, airport terminals, factories, and R&D facilities. Taikisha is known for its expertise in industrial HVAC systems, automotive paint finishing systems, and hydroponic plant factories.

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Taikisha conducts R&D in air conditioning, painting, robotics automation, energy efficiency, and environmental technologies. Its work includes developing painting and polishing systems for automotive, railway, aircraft, and small-product applications; testing painting robots, application equipment, booths, flash-off systems, and ovens; and developing automated polishing, masking-free i-DOT coating, AI and IoT, computational fluid dynamics, particle behavior analysis, and airflow visualization technologies. The company also uses numerical simulation, real-scale testing, and open innovation with customers, academic institutions, and startups to improve system performance and reduce environmental impact. Technology Development Center TAIKISHA INNOVATION SITE AIkawa, which conducts technology development through experimental validation and numerical simulation. It supports open innovation and research into real-scale production technologies, specialized environments, AI, IoT, and other advanced technologies. The company's Technical Center develops painting systems for automobiles, railway vehicles, aircraft, and small products. It evaluates painting and coating technologies, booth airflow, paint mist behavior, equipment contamination, exhaust dust removal, automated polishing, dry booths, AI and IoT systems, CFD models, and airflow visualization. Its quality verification facilities conduct robot-based painting tests, coating simulations, oven and flash-off testing, measurements, and pre-shipment system validation. Overseas research facilities support regional development and testing of painting technology. Facilities in Thailand, India, and Tianjin, China, conduct painting tests using equipment such as booths, ovens, conveyors, robots, application equipment, AGVs, and IoT software. In FY2026, the company incurred research and development expenses of JPY1,600 million, which was 0.6% of the company’s total revenue. As of March 2026, the company has 193 patents.