Average Co-Inventor Count = 2.52
ph-index = 19
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. (59 from 28,577 patents)
2. Hitachi, Ltd. (6 from 42,508 patents)
3. Honda Motor Co., Ltd. (2 from 21,927 patents)
4. Stanley Electric Co., Ltd (1 from 1,441 patents)
5. Rioch Company, Limited (1 from 6 patents)
69 patents:
1. 10519912 - Protective construction of fuel pump
2. 10395766 - Diagnostic process analysis system
3. 8858049 - Vehicle lighting unit
4. 8852097 - Metabolic energy monitoring system
5. 8794584 - Rubber mount
6. 8292806 - Safety and health information reporting system
7. 8200121 - Image forming apparatus having a plurality of cartridges and a single writing unit
8. 8130250 - Optical scanner and imaging apparatus using the same
9. RE42865 - Image forming system employing effective optical scan-line control device
10. 7991321 - Image forming apparatus
11. 7903133 - Optical scanner and imaging apparatus using the same
12. 7801462 - Image forming apparatus having a plurality of photoconductive elements, a plurality of optical writing devices and a stay
13. 7777774 - Image forming system employing effective optical scan-line control device
14. 7532227 - Optical scanner and image forming apparatus
15. 7525561 - Optical scanner and image forming apparatus