Average Co-Inventor Count = 1.08
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. (7 from 28,546 patents)
7 patents:
1. 9141978 - Billing management system, image forming apparatus, billing management apparatus, billing information recording method, and storage medium
2. 9143651 - Image forming apparatus, charging information recording method, and recording medium
3. 8902475 - Image forming apparatus, image processing method, and image processing system
4. 8561160 - Authentication system, image forming apparatus, and authentication server
5. 8400648 - Image forming apparatus, authentication method, and program
6. 8275679 - Billing management system, image forming apparatus, billing management apparatus, billing information recording method, and storage medium
7. 7693019 - Information recording device, method of controlling recording operation of said device, and program for controlling recording operation of said device