Average Co-Inventor Count = 3.00
ph-index = 7
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. Sony Corporation (11 from 58,129 patents)
11 patents:
1. 7529791 - Downloading system
2. 7237001 - Downloading system
3. 6538761 - Computer system
4. 6529946 - Downloading system
5. 6424790 - Video tape recorder having control head upstream of erase head
6. 6341047 - AV data base for VTR
7. 5907446 - Video tape recorder for recording management data on video tape
8. 5757749 - Information processing system operable with a detachable recording medium
9. 5745640 - AV data base for VTR
10. 5166911 - Timer reservation recording system
11. 5115390 - Control data input apparatus