Average Co-Inventor Count = 4.00
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. Sony Corporation (2 from 58,129 patents)
2. Sony Electronics Inc (2 from 2,335 patents)
2 patents:
1. 8458270 - Messaging and service system for mobile computer
2. 7860937 - Messaging and service system for mobile computer