Average Co-Inventor Count = 7.87
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. Hitachi, Ltd. (2 from 42,508 patents)
2. National Research Institute of Police Science (1 from 3 patents)
3. President of National Research of Police Science (1 from 1 patent)
2 patents:
1. 7041971 - Apparatus and method for detecting chemical agents
2. 6943343 - Chemical agent detection apparatus and method