Average Co-Inventor Count = 1.60
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. Hitachi, Ltd. (1 from 42,508 patents)
2. Hitachi-omron Terminal Solutions, Corporation (1 from 91 patents)
2 patents:
1. 7252185 - Bill receiving and paying apparatus
2. 6805343 - Bill handling machine for determining amount of bills in storage boxes