Average Co-Inventor Count = 2.46
ph-index = 10
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. (24 from 234 patents)
2. Ricoh Company, Ltd. (2 from 28,546 patents)
3. Nitto-denko Corporation (1 from 3,869 patents)
24 patents:
1. 7397577 - Printing system including different kinds of printers and a printer selecting device therefor
2. 7150401 - Bar code reader
3. 7123377 - System for managing number of sheets for image formation
4. 7046383 - Printing system including different kinds of printers and a printer selecting device therefor
5. 6827270 - Bar code reader having a rotatory optical deflector and a rotation position detector
6. 6819446 - Image forming system
7. 6637660 - Bar code reader
8. 6474156 - Method and device for determining the amount of a liquid existing in a container
9. 6405926 - Stand with a communication capability for a barcode reader
10. 6205918 - Stencil printer
11. 5791218 - Cutting device
12. 5787778 - Cutting device
13. 5700096 - Printer and method of printing using the same
14. 5678938 - Thermal printer
15. 5611253 - Cutting device