Average Co-Inventor Count = 2.86
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. Nec Corporation (2 from 35,658 patents)
2 patents:
1. 5351789 - Positioning mechanism
2. D348433 - Piezoelectric actuator