TDK, the only independent supplier of HDD recording heads, is being pursued by Toshiba and Seagate as they compete to acquire TDK’s disk drive magnetic head operation....

(BlocksandFiles, Oct. 6) With a single main customer, which has a low share of the disk drive market, 10 - 11 percent, TDK’s disk drive head business is viewed as a small operation with low profitability, compared to its other divisions producing batteries, passive components, and sensors. Overall, the unit’s business performance is volatile and capital-intensive, and secondary reporting puts its return on invested capital around 4 percent (See link for full article).

https://www.blocksandfiles.com/disk/2026/10/06/seagate-and-toshiba-both-want-to-acquire-tdks-disk-read/write-head-business/5301393