Average Co-Inventor Count = 1.31
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. Yamaha Corporation (12 from 5,452 patents)
12 patents:
1. 7893339 - Audio reproduction apparatus and method and storage medium
2. 7330730 - Portable terminal
3. 7291779 - Performance information display apparatus and program
4. 6946991 - Portable terminal
5. 6819235 - Method and apparatus for automatically canceling turn signals of vehicles
6. 6658117 - Sound field effect control apparatus and method
7. 5990408 - Electronic stringed instrument using phase difference to control tone
8. 5959231 - Electronic musical instrument and signal processor having a tonal effect
9. 5918301 - Music apparatus with complete replay session after incomplete play
10. 5703312 - Electronic musical instrument and signal processor having a tonal effect
11. 5602358 - Effect imparting device and electronic musical instrument incorporating
12. 5565640 - Automatic performance device capable of starting an automatic