Average Co-Inventor Count = 1.64
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 58,129 patents)
2. Sony Group Corporation (1 from 3,416 patents)
3 patents:
1. 12262187 - Speaker apparatus and chair
2. D1030717 - Seat speaker unit
3. D983582 - Combined head rest and seat speaker