Average Co-Inventor Count = 8.00
ph-index = 2
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. Sony Corporation (2 from 58,131 patents)
2. Sony Nec Optiarc Inc. (1 from 12 patents)
2 patents:
1. 7958520 - Disk drive device
2. 7856641 - Disk drive device and centering members therefor