Average Co-Inventor Count = 4.36
ph-index = 1
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. Hitachi, Ltd. (2 from 42,485 patents)
2 patents:
1. 5614138 - Method of fabricating non-linear resistor
2. 4692735 - Nonlinear voltage dependent resistor and method for manufacturing thereof