Average Co-Inventor Count = 3.00
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 Electronic Corporation (1 from 2,861 patents)
2. Tohoku Pioneer Electronic Corporation (1 from 27 patents)
1 patent:
1. 5892185 - Speaker unit and a method for manufacturing the same