JEOL Ltd. engages in the manufacture, development and sale of scientific and metrology instruments; semiconductor equipment; industrial equipment; and medical equipment. It also provides processing maintenance and services of related products. It operates through the following segments: Scientific and Measurement Instruments, Industrial Equipment, and Medical Equipment. The Scientific and Measurement Instruments segment provides transmission electron and scanning electron microscopes, surface analysis instruments, nuclear magnetic resonance and mass spectrometers for research and development in biology and quality control. The Industrial Equipment segment handles mask-related facilities in the semiconductor related area, lithography, and oil-repellent membranes for touch screens and expansion of the light-emitting diode. The Medical Equipment segment offers medical devices designed for development of advanced drugs and medical technology. The company was founded on May 30, 1949 and is headquartered in Tokyo, Japan.