Average Co-Inventor Count = 5.83
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 42,517 patents)
2 patents:
1. 10955401 - Chemical for test used in hazardous substance sensing device, hazardous substance sensing device, and hazardous substance sensing method
2. 8742886 - Multi unit controller