Average Co-Inventor Count = 5.00
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. 7474490 - Disk drive with reduced vibration due to rotational acceleration of a spindle motor