Average Co-Inventor Count = 2.57
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. Canon Kabushiki Kaisha (3 from 90,673 patents)
3 patents:
1. 4409310 - Surface doped inorganic electrophotographic photosensitive particles in
2. 4338389 - CdS-Binder member for electrophotography with Fe, Co, Ni additives
3. 4316948 - Photoconductive CdS powder material for electrophotography