Average Co-Inventor Count = 1.41
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. Ichikawa Co., Ltd. (3 from 97 patents)
2. Mitsubishi Heavy Industries Limited (1 from 4,629 patents)
3 patents:
1. 7135095 - Papermaking press felt and press apparatus for a papermaking machine
2. 6531033 - Wet web transfer belt
3. 6306260 - Wet web transfer belt