Average Co-Inventor Count = 2.40
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. Sharp Kabushiki Kaisha Corporation (2 from 25,530 patents)
2 patents:
1. 5065995 - Sheet supplying device
2. 4901107 - Lens repositioning device in a copier