Average Co-Inventor Count = 4.36
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 (4 from 58,129 patents)
4 patents:
1. 8531438 - Information providing apparatus
2. 7774114 - In-vehicle equipment system
3. 7496438 - In-vehicle equipment system
4. 7454274 - In-vehicle device