Average Co-Inventor Count = 2.84
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. (9 from 42,517 patents)
2. Hitachi Transport System, Ltd. (3 from 13 patents)
3. Hitachi Solutions, Ltd. (2 from 79 patents)
4. Hitachi Industrial Products, Ltd. (1 from 28 patents)
15 patents:
1. 11328163 - Methods and apparatus for automated surveillance systems
2. 11155412 - Warehouse management system and warehouse management method
3. 11027920 - Rack management system and rack management method
4. 11014745 - Picking system and picking method
5. 10933895 - Control arrangements for maintenance of a collection of physical devices and methods for controlling maintenance of a collection of physical devices
6. 10793353 - Article transportation system, transportation device, and article transportation method
7. 10586301 - Automatic parking management system and automatic parking management method
8. 10198006 - Parking management system and its control method
9. 9429951 - Transport management apparatus, transport system, and transport management program
10. 9098745 - Sampling position-fixing system
11. 9057619 - Optimal path search system and optimal path search method
12. 8880345 - Route generation system, route generation method, and program
13. 8483425 - Geospatial information creating system and geospatial information creating method
14. 8379992 - Computer-aided image interpretation method and device
15. 8359324 - Geographic information system