Average Co-Inventor Count = 3.00
ph-index = 1
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 (3 from 479 patents)
3 patents:
1. 12288543 - Sound source device for electronic musical instrument, musical sound generating method and electronic musical instrument system
2. 11756519 - Sound source device for electronic musical instrument, musical sound generating method and electronic musical instrument system
3. 11232774 - Electronic musical instrument main body device and electronic musical instrument system