Average Co-Inventor Count = 6.00
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 (3 from 26 patents)
3 patents:
1. 5336553 - Ink ribbon for printer and ink therefor
2. 5259875 - Ink ribbon for printer and ink therefor
3. 5135803 - Ink ribbon for printer and ink therefor