Average Co-Inventor Count = 4.67
ph-index = 3
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. 6486419 - Multifunctional image forming apparatus having a covered main power switch
2. D429278 - Printer
3. 5913095 - Image forming apparatus