You may be surprised to know what seemingly common products can potentially be used in development and manufacture of arms or WMDs.
For example, triethanolamine, raw materials of cosmetic products, shampoo or antifreeze coolant for cars, could be used for biological weapons such as mustard gas. And freeze-dry machines, normally used for making instant coffee, may be used as chemical and biological weapons manufacturing equipment. And carbon fiber, normally used for shaft of golf club, tennis racket of fishing rod, could be used for missile material.
Canon's products are no exception because semiconductor manufacturing equipment could be used for developing or manufacturing arms or WMDs. Other product such as lenses, binoculars and surveillance camera also could be incorporated into arms or used in battle field.