Average Co-Inventor Count = 2.86
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 (2 from 58,130 patents)
2 patents:
1. 7474484 - Reproducing apparatus and method, and recording apparatus and method
2. 5572491 - Magneto-optical recording device capable of recording two