Average Co-Inventor Count = 5.00
ph-index = 3
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 58,130 patents)
5 patents:
1. RE43917 - Recording and reproducing apparatus and terminal apparatus
2. RE42810 - Recording and reproducing apparatus and terminal apparatus
3. RE41977 - Recording and reproducing apparatus and terminal apparatus
4. 6704777 - Recording and reproducing apparatus and terminal apparatus
5. 6408332 - Recording and reproducing apparatus and terminal apparatus