Average Co-Inventor Count = 4.00
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Hitachi Global Storage Technologies Netherlands B.v. (1 from 2,636 patents)
1 patent:
1. 7986488 - Magnetic recording disk and disk drive with alternating single-polarity position error signal (PES) blocks for read/write head positioning