Average Co-Inventor Count = 4.44
ph-index = 4
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. Nisca Corporation (3 from 489 patents)
2. Other (1 from 832,680 patents)
4 patents:
1. 7971875 - Sheet accumulation apparatus and image formation apparatus including the apparatus
2. 6659450 - Sheet feeding apparatus and automatic document using the same
3. 6648320 - Document feeder and image reading apparatus
4. 6321064 - Document feeding apparatus