Average Co-Inventor Count = 6.00
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. Itoh Seiyu Kabushiki Kaisha (1 from 4 patents)
2. Osaka-fu (1 from 2 patents)
1 patent:
1. 5069815 - Powder electroluminescent element comprising inorganic