Average Co-Inventor Count = 1.45
ph-index = 3
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. Pioneer Electronic Corporation (3 from 2,861 patents)
2. Pioneer Corporation (1 from 2,646 patents)
4 patents:
1. 7904239 - Travel route display system
2. D302430 - Speaker
3. D295857 - Speaker
4. 4597469 - Collapsible headphone structure