Average Co-Inventor Count = 1.43
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 Company, Ltd. (3 from 28,546 patents)
3 patents:
1. 11137953 - Image forming apparatus with efficient sheet removal from purged sheet storage
2. 11073783 - Fixing device and image forming apparatus
3. 4919045 - Offset printer having a press drum larger than its rubber drum