Average Co-Inventor Count = 3.57
ph-index = 6
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. (14 from 42,517 patents)
2. Shin-Kobe Electric Machinery Co., Ltd. (6 from 102 patents)
3. Hitachi Metals, Ltd. (4 from 2,333 patents)
4. Hitachi Industrial Equipment Systems Co., Ltd. (2 from 496 patents)
5. Hitachi Vehicle Energy, Ltd. (2 from 69 patents)
6. Hitachi Automotive Systems, Ltd. (1 from 2,028 patents)
23 patents:
1. 11514388 - Logistics system
2. 10989700 - Temperature history indicator
3. 10983013 - Temperature sensing body
4. 10677660 - Temperature traceable indicator and method for manufacturing same
5. 9224512 - Positive electrode active material for non-aqueous secondary battery and manufacturing method thereof, as well as non-aqueous secondary battery using positive electrode active material
6. 8974971 - Positive electrode for rechargeable lithium ion battery, rechargeable lithium ion battery, and battery module
7. 8900753 - Cathode material for Li ion secondary battery and Li ion secondary battery using the same
8. 8758941 - Positive electrode material for lithium ion secondary battery and lithium ion secondary battery using the same
9. 8709656 - Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
10. 8530087 - Secondary lithium battery
11. 8263269 - Lithium secondary battery
12. 8097363 - Positive electrode material, its manufacturing method and lithium secondary battery
13. 7910246 - Positive electrode material, its manufacturing method and lithium secondary battery
14. 7862933 - Lithium secondary battery
15. 7824807 - Positive electrode material for lithium secondary battery and lithium secondary battery