Average Co-Inventor Count = 4.00
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. Toppan Printing Co., Ltd. (1 from 1,268 patents)
2. Fuji Die Co., Ltd. (7 patents)
1 patent:
1. 8475940 - Anthracene derivative and light-emitting device