Eurekaprince, take some time my friend and learn about the history of Matsushita Electric Corporation of America. They were a US based subsidiary of Matsushita Electric Industrial Company. Matsushita has an interesting history. The firm started way back in 1918. Their main business was big industrial electrical/mechanical items. Consumer goods came after WWII. In 1961 Konosuke Matsushita came to the US to establish a US based manufacturing arm to support a growing business in the US. TVs were their first products. Matsushita Electric Corporation of America operated multiple manufacturing sites in the US, not Japan, but the US and those Matsushita built Kenmores are among their US made products.
The Japanese manufacturing sites were under Matsushita Electric Industrial Company. Matsushita made a lot more than consumer goods. They built heavy industrial electronics and electromechanical items. Think things you would see in a power plant, assembly line, heavy rail (remember Japan has a lot of electrified rail) or a shipyard. They sold their consumer goods under the National brand name everywhere but the US, where that name was already in use by another firm. For the US they adopted the Panasonic brand name on both US and Japanese manufactured consumer goods. Over time the Panasonic name was applied to goods sold outside the US, and the name became more recognized internationally than the Matsushita name. In the past decade the Matsushita name was abandoned and all the many divisions renames Panasonic.