Average Co-Inventor Count = 4.00
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. Pioneer Corporation (2 from 2,646 patents)
2. Pioneer Electronic Corporation (1 from 2,861 patents)
3 patents:
1. 7702212 - Information recording apparatus with memory control structure
2. 6892024 - Information recording apparatus
3. 6275451 - Information recording apparatus and information reproducing apparatus