Average Co-Inventor Count = 2.22
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 (5 from 58,132 patents)
5 patents:
1. 8484667 - Recording and/or reproducing apparatus
2. 8210627 - Printing apparatus, printing method, and program
3. 7881163 - Recording medium changer and reproducing apparatus
4. 6542337 - Hard disk apparatus
5. 5481418 - Tape loading aparatus including gear mechanism for controlling rotation