Average Co-Inventor Count = 5.54
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 58,132 patents)
2 patents:
1. 5276471 - Image displaying device
2. 5189520 - Video camera modular accessory apparatus