Average Co-Inventor Count = 1.41
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. Fujitsu Corporation (4 from 39,238 patents)
4 patents:
1. 6732925 - Card processing device and card processing method
2. 6594747 - Processing apparatus with integrated circuit and integrated circuit package
3. 4487306 - Bill-discriminating apparatus
4. 4138059 - Card handling device