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 Corporation (1 from 39,238 patents)
2. Fujitsu Isotec Limited (1 from 26 patents)
2 patents:
1. 6296713 - Erasing method
2. 6071352 - Erasing method and erasing apparatus for performing that erasing method