Average Co-Inventor Count = 3.00
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. Riken Corporation (2 from 852 patents)
2 patents:
1. 7691202 - Ultraviolet light-emitting device in which p-type semiconductor is used
2. 7309394 - Ultraviolet light-emitting device in which p-type semiconductor is used