Average Co-Inventor Count = 3.60
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. (3 from 28,577 patents)
3 patents:
1. 9026009 - Toner container and image forming apparatus using same
2. D595766 - Mass sheet feed tray
3. D580482 - Dry electrostatic copying machine