Average Co-Inventor Count = 1.50
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. Denso Corporation (2 from 19,697 patents)
2 patents:
1. 8872671 - Apparatus outputting sound in specified direction
2. 8478601 - Voice recognition apparatus, method for recognizing voice, and navigation apparatus having the same