Average Co-Inventor Count = 2.26
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 (10 from 5,452 patents)
10 patents:
1. 9721465 - Information-providing system, portable terminal device, server, and program
2. 9398623 - Communication terminal, wireless device, provider server, and wireless communication system
3. 7574364 - Contents rating method
4. 7567910 - Method of validating entrance to event site
5. 7087829 - Method, system and recording medium for viewing/listening evaluation of musical performance
6. 6801898 - Time-scale modification method and apparatus for digital signals
7. 6583348 - Server for use in rating of music contents
8. 6487536 - Time-axis compression/expansion method and apparatus for multichannel signals
9. 6441291 - Apparatus and method for creating content comprising a combination of text data and music data
10. 5974387 - Audio recompression from higher rates for karaoke, video games, and