Average Co-Inventor Count = 4.32
ph-index = 3
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. Kabushiki Kaisha Toshiba (2 from 52,711 patents)
2. Toshiba Elevator Kabushiki Kaisha (2 from 74 patents)
3. The Tokyo Electric Power Company, Incorporated (1 from 177 patents)
4 patents:
1. 7665594 - Passenger conveyor
2. 7605680 - Electromagnetic actuator
3. 7357240 - Conveyor apparatus
4. 5103739 - Apparatus for tracking an overhead line and automatically moving around