Panasonic Corporation is a Japan-based electronics manufacturer. The Audio-Visual Computer (AVC) Network segment offers audio and video equipment. The Appliance segment provides household air-conditioning machines. The System Communications segment provides system network and mobile communications-related products and services. The Eco-solutions segment consists of riding, energy system, housing system and ecological system. The Automotive systems segment provides automotive multimedia-related equipment and environmental automotive equipment. The Device segment provides electronic components, semiconductors and optical devices. The Energy segment provides solar system and lithium-ion batteries. The Others segment consists of health care, manufacturing solutions and PanaHome. On July 1, 2013, it sold its 81% stake in a Japan-based subsidiary. On October 1, 2013, it announced it had set up a research and development center in Singapore.