Average Co-Inventor Count = 1.71
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. Nissan Motor Company Limited (2 from 13,415 patents)
2 patents:
1. 7191124 - Voice input and output apparatus with balancing among sound pressures at control points in a sound field
2. 6897861 - Map image display device, map image display method and map image display program