Average Co-Inventor Count = 2.57
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. Toyota Jidosha Kogyo Kabushiki Kaisha (2 from 1,838 patents)
2. Toyota Jidosha Kabushiki Kaisha (1 from 36,771 patents)
3 patents:
1. 5072813 - Damper
2. 4154201 - Ignition timing control device of an internal combustion engine with an
3. 4004563 - Spark ignition engine using lean air-fuel mixture