Average Co-Inventor Count = 5.03
ph-index = 9
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 42,496 patents)
2. Maxell, Ltd. (5 from 887 patents)
3. Xanavi Informatics Corporation (4 from 146 patents)
4. Hitachi Maxell, Limited (2 from 1,112 patents)
5. Hitachi Consumer Electronics Co., Ltd. (2 from 365 patents)
22 patents:
1. 12368788 - Content delivery system, delivery server, receiving terminal, and content delivery method
2. 11863648 - Content delivery system, delivery server, receiving terminal, and content delivery method
3. 11451646 - Content delivery system, delivery server, receiving terminal, and content delivery method
4. 10728362 - Content delivery system, delivery server, receiving terminal, and content delivery method
5. 10057371 - Content delivery system, delivery server, receiving terminal, and content delivery method
6. 9661101 - Content delivery system, delivery server, receiving terminal, and content delivery method
7. 9313295 - Content delivery system, delivery server, receiving terminal, and content delivery method
8. 8484299 - Content delivery system, delivery server, receiving terminal, and content delivery method
9. 8416309 - Camera-fitted information retrieval device
10. 8334933 - Television operation method
11. 8073312 - Recorder equipped with dubbing function
12. 7788028 - Navigation system
13. 7716604 - Apparatus with thumbnail display
14. 7577518 - Navigation system
15. 7512483 - Navigation system