Average Co-Inventor Count = 3.60
ph-index = 8
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 (10 from 58,129 patents)
2. International Business Machines Corporation (1 from 164,108 patents)
11 patents:
1. 11688157 - Shopper analysis using an acceleration sensor and imaging
2. 6237120 - Program patching of a ROM
3. 5905598 - Zoom lens apparatus
4. 5623665 - Electronic apparatus for patching a read-only memory
5. 5241422 - Zoom lens apparatus
6. 4866542 - Remote-controlling commander with multi-function rotary dial
7. 4821032 - Communication system for video information apparatus
8. 4794471 - Mode processing circuit
9. 4583132 - Recording/reproducing apparatus for selectively processing monaural,
10. 4575772 - Apparatus for recording additional video signals in a helical scan
11. 4533963 - Video tape recorder for re-recording audio signals