Average Co-Inventor Count = 1.25
ph-index = 6
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 5,451 patents)
16 patents:
1. 10860203 - Touch display device having linear and circular arc operation modes
2. D823333 - Display screen with graphical user interface
3. D817990 - Display screen with graphical user interface
4. 9524706 - Displaying content in relation to music reproduction by means of information processing apparatus independent of music reproduction apparatus
5. 9437178 - Updating music content or program to usable state in cooperation with external electronic audio apparatus
6. 9040801 - Displaying content in relation to music reproduction by means of information processing apparatus independent of music reproduction apparatus
7. 8424108 - Contents supplying system
8. 7958054 - Apparatus for reproduction song data with limitation dependent on preview or purchase
9. 7935878 - System, method and computer program for ensuring secure use of music playing data files
10. 7663050 - Automatic accompaniment apparatus, method of controlling the same, and program for implementing the method
11. 7375274 - Automatic accompaniment apparatus, method of controlling the apparatus, and program for implementing the method
12. 7371959 - System, method and computer program for ensuring secure use of music playing data files
13. 7166792 - Storage medium containing musical score displaying data, musical score display apparatus and musical score displaying program
14. 7129407 - Apparatus and computer program for practicing musical instrument
15. 6664458 - Apparatus and method for automatically determining notational symbols based on musical composition data