- Business
- Ono Sokki Co., Ltd. manufactures and sells electronic measuring instruments, applied electronic equipment, and electronic control systems primarily in Japan and internationally. Its core product portfolio includes automotive test systems; flow meters; GPS speed meters; engine tachometers; sound level meters; microphones; amplifiers; accelerometers; vibration comparators; laser Doppler vibrometers; torque detectors; torque converters; motor torque measurement systems; digital linear gages; non-contact thickness meters; rotary and roller encoders; revolving detectors and indicators; speedometers; portable tachometers; FFT analyzers; and data station software. The company also provides custom-built test equipment for research and development, quality control, and consulting services related to sound and vibration, plus after-sales and engineering services. Ono Sokki operates three main business segments: measuring equipment, special order test equipment and services, and other operations including non-life insurance agency business and real estate management. Founded in 1940 and headquartered in Yokohama, Japan, the company serves customers in automotive, industrial machinery, home appliances, robotics, and environmental sectors. Recently, Ono Sokki has focused on expanding its automotive electric motor testing and monitoring systems, particularly for electric vehicle motors, supporting torque ripple and cogging torque measurement to enhance motor efficiency and reduce noise. It also emphasizes motor vibration and abnormal sound monitoring systems for predictive maintenance and quality control automation. These strategic product developments position Ono Sokki for growth within evolving automotive and industrial markets. The company’s latest financial year ended December 2024 with net sales of approximately JPY 11.8 billion and maintains a workforce of about 650 employees. Ono Sokki continues to reinforce its international presence and technological capabilities through ongoing engineering service enhancements and product innovation.