Average Co-Inventor Count = 2.67
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 High-tech Corporation (2 from 1,134 patents)
2 patents:
1. 12441005 - Robot hand for gripping and operating a pipette
2. 12434382 - Robot teaching system