Average Co-Inventor Count = 2.77
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 42,496 patents)
2. Clarion Co (1 from 1,057 patents)
3 patents:
1. 11651317 - Work operation analysis system and work operation analysis method
2. 11457192 - Digital evidence management method and digital evidence management system
3. 9547792 - Control apparatus, vehicle, and portable terminal