Average Co-Inventor Count = 4.44
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 Electronic Corporation (2 from 2,861 patents)
2 patents:
1. 6275451 - Information recording apparatus and information reproducing apparatus
2. 6262951 - Information reproducing system and method capable of reproducing in desired reproducing time