Average Co-Inventor Count = 1.33
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. 4542427 - Magnetic tape setting device for use in magnetic tape recording and/or
2. 4418367 - Magnetic tape setting device for use in magnetic tape recording and/or