Average Co-Inventor Count = 2.64
ph-index = 3
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 (12 from 58,130 patents)
2. Sony Corportion (1 from 21 patents)
13 patents:
1. 9429819 - Camera and optical unit
2. 8169644 - Thermal dye sublimation printer and ink ribbon cassette therefor
3. 7651287 - Printer device having ink ribbon cartridge with protection plate for thermal head
4. 7375919 - Recording and reproducing apparatus
5. 7199976 - Reel lock mechanism of tape cassette and tape cassette
6. 6937437 - Reel lock mechanism of tape cassette, and tape cassette
7. 6735048 - Tape cassette
8. 6697222 - Tape cassette with wide extraction portions and tape drive apparatus
9. 6683752 - Tape cassette
10. 6452749 - Tape cassette
11. 5625516 - Tape end detection mechanism for tape cassette
12. 5539593 - Cassette loading mechanism having a configuration to protect the head
13. 5305162 - Tape tensioning mechanism with tape loading-activated tensioning pin