Average Co-Inventor Count = 6.00
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. Sekisui Jushi Kabushiki Kaisha (2 from 19 patents)
2 patents:
1. 7095337 - Road traffic weather-monitoring system and self-luminous road sign system
2. 6812855 - Road traffic weather observation system and self-emission road sign system