Average Co-Inventor Count = 5.46
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. Ricoh Company, Ltd. (2 from 28,584 patents)
2 patents:
1. 6447973 - Liquid developer for developing electrostatic image and image forming method
2. 5851717 - Developer for use in electrophotography, and image formation method