Average Co-Inventor Count = 3.43
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. Sumitomo Riko Company Limited (2 from 342 patents)
2 patents:
1. 10691038 - Conductive roller for electrophotographic equipment
2. 10444655 - Charging roll for electrophotographic equipment