Average Co-Inventor Count = 14.01
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. Ricoh Printing Systems, Ltd. (1 from 129 patents)
2. Ricoh Company, Ltd. (28,577 patents)
1 patent:
1. 6928257 - Image forming and recording apparatus with three pressure members