Average Co-Inventor Count = 3.00
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. Tohoku Ricoh Co., Ltd. (2 from 234 patents)
2 patents:
1. 5882005 - Large capacity paper feeder for an image forming apparatus
2. 5794928 - Large capacity paper feeder for an image forming apparatus