Average Co-Inventor Count = 3.19
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. (2 from 42,517 patents)
2. Nec Corporation (2 from 35,756 patents)
3. Other (1 from 832,912 patents)
4. Hitachi Micro Eng. Ltd. (1 from 1 patent)
5 patents:
1. 7166814 - Sorting machine
2. 6182742 - Cooling apparatus for use in an electronic system
3. 5467974 - Paper sheet stacking mechanism for mail sorting system
4. 4837663 - Electronic apparatus cooling system
5. 4739444 - Device for adjusting pressure loss of cooling air for an assembly of