Average Co-Inventor Count = 3.33
ph-index = 3
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 Electronics Inc (2 from 2,335 patents)
2. Sony Corporation of America (1 from 198 patents)
3 patents:
1. D360198 - Optical disc storage library
2. 5351161 - Variable scale rotary switch
3. 5187630 - Multi-parameter variable scale rotary switch