Average Co-Inventor Count = 3.51
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. (6 from 28,566 patents)
2. Hitachi Koki Co., Ltd. (1 from 1,267 patents)
7 patents:
1. 12313991 - Fixing device and image forming apparatus incorporating the same which includes a lubricant supplier and a lubricant collector
2. 12174569 - Fixing device and image forming apparatus
3. 10394169 - Fixing device and image forming apparatus
4. 10012936 - Fixing device and image forming apparatus
5. 10012937 - Fixing device and image forming apparatus including a fixing belt, a presser, and a gap retainer
6. 9233557 - Coating apparatus and image forming system
7. 6227540 - Sheet carrying apparatus