Average Co-Inventor Count = 3.66
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. (3 from 42,508 patents)
2. Ricoh Printing Systems, Ltd. (1 from 129 patents)
4 patents:
1. 7244012 - Head cleaning device for ink jet printer, and printer provided with the same
2. 5780825 - Automatic teller machine including a halt requesting mechanism in a
3. 5252813 - Method and apparatus for automatic transaction having card receipt
4. 5101979 - Paper sheet depositing and dispensing apparatus, abnormality recovery