Average Co-Inventor Count = 1.50
ph-index = 3
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. Nidec Sankyo Corporation (4 from 729 patents)
4 patents:
1. 9027834 - Card reader
2. 8690058 - Card reader
3. 7364076 - Card reader
4. 7175085 - Card reader