Average Co-Inventor Count = 5.54
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. Toyota Jidosha Kabushiki Kaisha (2 from 36,653 patents)
2. Sony Corporation (1 from 58,130 patents)
2 patents:
1. 7263350 - Portable electronic information device
2. 6757593 - Vehicle expression operation control system, vehicle communication system, and vehicle which performs expression operation