Average Co-Inventor Count = 4.44
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. Kyushu Electric Power Co., Inc. (1 from 32 patents)
2. Dyden Corporation (1 from 12 patents)
3. Daiden Co., Ltd (1 from 5 patents)
2 patents:
1. 11031561 - Organic electron transport material and organic electroluminescent element using same
2. 9406910 - Organic electroluminescent element and manufacturing method thereof, and phosphorus-containing organic compound and manufacturing method thereof