Which American multinational corporation headquartered in San Jose, California , developed a keychain RFID device introduced in 1997 by Mobil Oil Corp?
Verifone Verifone is an American multinational corporation headquartered in San Jose, California that provides technology for electronic payment transactions and value-added services at the point-of-sale.
OSI Systems OSI Systems, Inc. is an American company based in California that develops and markets security and inspection systems such as airport security X-ray machines and metal detectors, medical monitoring and anesthesia systems, and optoelectronic devices. As of June 2010, the company employs approximately 3,180 personnel globally and includes subsidiary companies Spacelabs Healthcare, Rapiscan Systems and OSI Optoelectronics.