On June 21, Canon Inc. issued three press releases about its efforts to remove patent-infringing toner cartridges from the Amazon marketplace. The printer maker took down five Amazon Standard Identification Numbers (ASINs) sold by RapmininK on Amazon.com (Amazon USA), one ASIN sold by Chengdu yuehongshun shangmao youxian gongsi on Amazon.co.uk (Amazon UK) and another ASIN