Average Co-Inventor Count = 3.00
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. Fukoku Co., Ltd. (2 from 49 patents)
2. Sony Corporation (1 from 58,129 patents)
2 patents:
1. 7428743 - In-vehicle player
2. 5564981 - Rotation transmission buffer apparatus