Average Co-Inventor Count = 2.98
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. Hitachi, Ltd. (17 from 42,485 patents)
2. Hitachi Systems & Services, Ltd. (1 from 4 patents)
17 patents:
1. 11527325 - Analysis apparatus and analysis method
2. 11526722 - Data analysis apparatus, data analysis method, and data analysis program
3. 9384177 - File history recording system, file history management system and file history recording method
4. 9043621 - Power-saving network management server, network system, and method of determining supply of power
5. 8402048 - Trail management method, system, and program
6. 8352093 - Intra-area environmental control system and intra-area environmental control method
7. 8311868 - Business analysis system and method
8. 8160781 - Vehicular control system and control method
9. 8027862 - Time series pattern generating system and method using historical information
10. 7958217 - Job management system and method for minimizing log data
11. 7739083 - Program and/or method for calculating tuning parameters for numerical computation library
12. 7707509 - Device and method for assisting input operations
13. 7698423 - Computer system for estimating operational risk
14. 7634386 - Method and apparatus for setting up runtime conditions
15. 7555509 - Parallel fast Fourier transformation method of concealed-communication type