Average Co-Inventor Count = 3.75
ph-index = 2
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. Nippon Carbide Kogyo Kabushiki Kaisha (2 from 88 patents)
2 patents:
1. 4996127 - Toner for developing an electrostatically charged image
2. 4797339 - Toner for developing electrostatic images