Philips Healthcare makes it easier to get a look on the inside of things. Its parent company, Royal Philips Electronics, developed the first X-ray tube for medical use in 1918. Today, Philips Healthcare is a top global maker of medical imaging equipment, including X-ray, ultrasound, MR (magnetic resonance), and CT (computed tomography) scanners. The firm also makes patient monitors, resuscitation products, and data management systems, and it offers consulting, financing, training, and maintenance services. Philips Healthcare accounts for about 30% of its parent's sales and has operations in more than 60 countries.