Average Co-Inventor Count = 2.57
ph-index = 5
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 Consumer Electronics Co., Ltd. (2 from 365 patents)
3. Other (1 from 832,680 patents)
10 patents:
1. 11798108 - Transportation service planning system and transportation service planning method
2. 10522122 - Music box apparatus
3. 8667426 - Input apparatus
4. 8416309 - Camera-fitted information retrieval device
5. 8334933 - Television operation method
6. 8003907 - Operation device and elevator apparatus with operation device
7. 7312791 - Display unit with touch panel
8. 7245293 - Display unit with touch panel and information processing method
9. 7002556 - Touch responsive display unit and method
10. 6940494 - Display unit with touch panel and information processing method