Average Co-Inventor Count = 2.00
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 28,577 patents)
2 patents:
1. 6049396 - Desktop color copier which includes a revolving type developing device
2. 5838456 - Desktop color copier which includes a revolving type developing device