Average Co-Inventor Count = 4.63
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. Hitachi, Ltd. (4 from 42,496 patents)
2. Hitachi-high-technologies Corporation (3 from 2,874 patents)
3. Hitachi High-technologies Corpoartion (1 from 5 patents)
8 patents:
1. 12411547 - Pressure sensor device, method for manufacturing the same, and work management system using the same
2. 11835412 - Delicate work tool digitalization system
3. 11562567 - Observed-object recognition system and method
4. 10948904 - Product inspection system and production inspection method
5. D780767 - Display screen with graphical user interface
6. D774045 - Display screen with graphical user interface
7. D774048 - Display screen with graphical user interface
8. 9412557 - Charged particle beam apparatus and program