Average Co-Inventor Count = 6.00
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. 5149079 - Feeding device having a pivotal copy material holding plate
2. 5071111 - Driving device for a rotatable cassette