Average Co-Inventor Count = 1.33
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. Yamaha Corporation (8 from 5,452 patents)
8 patents:
1. 9460203 - Sound processing apparatus
2. 9087502 - Sound processing apparatus and sound processing system
3. 8965755 - Acoustic data communication device
4. 8818540 - Sound processing apparatus
5. 6844832 - Input data conversion method, input data conversion program, and input data conversion system
6. 6838608 - Lyric display method, lyric display computer program and lyric display apparatus
7. 6757303 - Technique for communicating time information
8. 6525253 - Transmission of musical tone information