JEOL Ltd. engages in the research, development, manufacture, and marketing of scientific and metrology instruments, semiconductor and industrial equipment, and medical equipment. The company provides transmission electron microscopes; scanning electron microscopes; ion beam application equipment, including specimen preparation equipment and multibeam systems; instruments for micro area and surface analysis, such as electron probe micro analyzers, auger microprobes, and photoelectron spectrometers; magnetic resonance equipment, such as nuclear magnetic resonance and electron spin resonance spectrometers; X-ray fluorescence spectrometers; mass spectrometers; electron beam lithography systems; and clinical chemistry analyzers. It also offers industrial equipment for thin-film formation and material processing, including thin film formation equipment and material processing equipment. The company was formerly known as Japan Electron Optics Laboratory Co., Ltd. and changed its name to JEOL Ltd. in 1961. JEOL Ltd. was founded in 1949 and is headquartered in Akishima, Japan.