Average Co-Inventor Count = 2.61
ph-index = 2
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. Roland Corporation (5 from 477 patents)
2. Osaka University (1 from 987 patents)
3. University of Tsukuba (1 from 177 patents)
5 patents:
1. 12039961 - Electronic musical instrument and key operation detection method
2. 11741924 - Electronic wind instrument and key operation detection method
3. 11600251 - Musicality information provision method, musicality information provision apparatus, and musicality information provision system
4. D823934 - Electronic wind instrument
5. D805126 - Keyboard instrument