Average Co-Inventor Count = 5.00
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. Fujitsu Isotec Limited (1 from 26 patents)
2. Fujitsu Limited and Fujitsu Isotec Limited (1 from 1 patent)
2 patents:
1. 5915859 - Pivotable ink ribbon cassette and a printer
2. 5472286 - Ink ribbon cassette