Average Co-Inventor Count = 1.41
ph-index = 11
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. Yamaha Corporation (16 from 5,452 patents)
16 patents:
1. D1072927 - Electronic piano
2. 10521183 - Control terminal device and audio system control method that displays a source selection screen with an area image background
3. D789326 - Speaker
4. D780160 - Speaker with lighting
5. D774020 - Speaker cover
6. D771600 - Microphone
7. D769223 - Speaker cover
8. D766213 - Speaker with lighting
9. D758347 - Speaker with lighting
10. D751527 - Sound control device with speaker
11. 9275615 - Information processing terminal that displays information related to a function selected based on a positional relation, and system
12. D749059 - Speaker
13. D749060 - Speaker
14. D743383 - Microphone
15. D614686 - Electronic percussion