Average Co-Inventor Count = 6.46
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. Dainichiseika Color & Chemicals Mfg. Co., Ltd. (2 from 264 patents)
2 patents:
1. 6623556 - Near-infrared transmitting black azo pigments
2. 6471766 - Pigment dispersants and pigment compositions containing the same