Average Co-Inventor Count = 2.77
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. Aisin Seiki Kabushiki Kaisha (3 from 5,207 patents)
2. Toyota Jidosha Kogyo Kabushiki Kaisha (1 from 1,838 patents)
3 patents:
1. 4261454 - Clutch releasing device
2. 4231456 - Clutch releasing device
3. 4220233 - Clutch assembly for use with an internal combustion engine