Average Co-Inventor Count = 4.44
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. Nichias Corporation (2 from 254 patents)
2 patents:
1. 6502833 - Metal C-shaped ring gasket
2. 6395416 - Separator for fuel battery and method of producing the same