Average Co-Inventor Count = 4.20
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 (1 from 2,646 patents)
2. Tohoku Pioneer Corporation (1 from 291 patents)
2 patents:
1. 7137676 - Electronic appliance
2. 7038372 - Organic EL element and method of producing the same