Average Co-Inventor Count = 4.00
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. Toshiba Corporation (1 from 193 patents)
2. Kabushiki Kaisha Toshiba (52,766 patents)
3. Toshiba Infrastructure Systems & Solutions Corporation (279 patents)
1 patent:
1. 8374739 - Train control device having a target speed calculation function