Average Co-Inventor Count = 5.00
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 (2 from 58,129 patents)
2 patents:
1. 7280299 - Recording method for magnetic recording medium, recording device for magnetic recording medium and magnetic recording medium
2. 7224544 - Method and device for recording data and erasing servo data