Average Co-Inventor Count = 6.00
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 28,584 patents)
2 patents:
1. 5105284 - Digital copier operable with external storing medium
2. 5016114 - Digital copier apparatus with external laser card storage medium and