It strikes me as a little odd that a company got a patent in 1991 covering parallel processing of a form that seems to look suspiciously like the Inmos Transputer hardware from the 80’s. They are now suing Sony for their cell architecture (hey, try suing IBM instead; they designed the damned thing). The patent in question is 5,056,000, Synchronized parallel processing with shared memory.
If it wasn't for carbon-14, I wouldn't date at all