One of the most significant recent technology developments has been the commercialization of Perpendicular Magnetic Recording, or PMR. Starting in 2005, adoption of PMR facilitated a tenfold increase in the data capacity of Hard Disk Drives (HDDs). HDD capacities of 10 TB are the norm in 2017. Professor Shunichi Iwasaki, of Tohoku University, was the most important champion of PMR. He also made key PMR inventions. This oral history records the contributions Professor Iwasaki made to the success of PMR.
Perpendicular Magnetic Recording; PMR; Tohoku University