Average Co-Inventor Count = 4.21
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. Hitachi, Ltd. (4 from 42,485 patents)
4 patents:
1. 6834808 - Paper money receiving/discharging apparatus and paper money conveyer apparatus
2. 6585098 - Bill-receiving/discharging device and bill-handling apparatus with the bill-receiving/discharging device
3. 6568673 - Apparatus for handling paper sheets and the like
4. 6565082 - Bill receiving and discharging device and bill handling apparatus