Average Co-Inventor Count = 3.27
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. Mitsubishi Heavy Industries Machinery Systems, Ltd. (3 from 121 patents)
3 patents:
1. 11302119 - Toll collection facility, onboard unit, toll collection system, toll collection method, and program
2. 11182983 - Same vehicle detection device, toll collection facility, same vehicle detection method, and program
3. 11080945 - On-board device, automatic toll collection machine, toll collection system, and toll collection method