Average Co-Inventor Count = 3.60
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. Pioneer Corporation (2 from 2,646 patents)
2. Pioneer Electronic Corporation (1 from 2,861 patents)
3 patents:
1. 6628577 - Disc player
2. 6549491 - Disc player
3. 6219324 - Disk carrier with levers holding and carrying a disk in horizontal direction