Average Co-Inventor Count = 3.20
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. Hitachi, Ltd. (7 from 42,485 patents)
2. Hitachi Automotive Systems, Ltd. (3 from 2,028 patents)
3. Clarion Co (2 from 1,057 patents)
4. Hitachi Astemo Ltd. (1 from 1,192 patents)
13 patents:
1. 12045023 - Electronic control device and neural network update system
2. 11645062 - Software update device and software update system
3. 11307044 - Server and vehicle control system
4. 11292491 - Server and vehicle control system
5. 10922963 - Vehicle information processing apparatus and vehicle information processing program
6. 10437695 - Fault information providing server and fault information providing method for users of in-vehicle terminals
7. 9955027 - Affiliated service provision method
8. 9650052 - Driving diagnosis method and driving diagnosis apparatus
9. 9569344 - Testing system for a mobile object in a navigation map
10. 9454903 - Road information sharing method, road information sharing system, road information sharing device, and road information sharing program
11. 9449437 - Method of diagnosing operating characteristics
12. 8855915 - Navigation system, navigation apparatus, method and server
13. 8713700 - Access control method, information display device using the same, and information display system