Average Co-Inventor Count = 3.75
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 58,131 patents)
2. Matsushita Electric Industrial Co., Ltd. (1 from 27,375 patents)
2 patents:
1. 6862459 - Switching device
2. 6774322 - Switch device