Average Co-Inventor Count = 2.00
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. Sony Corporation (3 from 58,132 patents)
3 patents:
1. 7089572 - Electronic apparatus
2. 6772422 - Electronic apparatus
3. 5291353 - Recoding and/or reproducing apparatus