Average Co-Inventor Count = 4.78
ph-index = 4
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 Tokai Rika Denki Seisakusho (11 from 2,004 patents)
2. Toyota Jidosha Kabushiki Kaisha (3 from 36,713 patents)
11 patents:
1. 11418953 - Key information generation system and key information generation method
2. 11220239 - Key information generation system and key information generation method
3. 11142166 - Sharing system using valet key
4. 11110894 - Car sharing system
5. 10984616 - Car sharing system and car sharing program
6. 10668896 - Car sharing system and car sharing method
7. 10647298 - Valet key control system and valet key
8. 10596999 - Valet key and method for controlling valet key
9. 10527641 - Mobile device
10. 10493953 - Car sharing system
11. 9714004 - Electronic key registration system