Average Co-Inventor Count = 4.00
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 28,566 patents)
2 patents:
1. 5679462 - Fixing apparatus
2. 5678153 - Fixing apparatus comprising a cleaning roller having a coated layer of