Average Co-Inventor Count = 5.00
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. Tohoku Ricoh Co., Ltd. (3 from 234 patents)
3 patents:
1. 5901645 - Used stencil receptacle
2. 5862752 - Used stencil receptacle
3. 5816149 - Device for automatically peeling off the leading edge of a stencil from