International Treaties control exports of nuclear and biological / chemical weapons themselves.
Canon Inc. and other group companies do not handle such weapons of mass destruction. Hence what we export are not subject to these treaties.
On the other hand, international regimes control export of civil goods and technologies that may be diverted to the development or production of WMDs or arms. That means Canon group's exports are possibly subject to the international regimes' control.
There are four international regimes: Nuclear Suppliers Group or NSG, Australia Group or AG, Missile Technology Control Regime or MTCR and the Wessonar Arrangement or WA.