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, Ltd. (1 from 42,496 patents)
2. Hitachi Global Storage Technologies Japan, Ltd. (1 from 227 patents)
2 patents:
1. 7116508 - Apparatus for locking a moveable part of a magnetic disk apparatus
2. 6862153 - Apparatus for latching a magnetic disk