Average Co-Inventor Count = 1.49
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. Yamaha Corporation (6 from 5,450 patents)
6 patents:
1. 11961498 - Musical instrument, non-transitory computer readable medium and musical instrument communication system
2. 10354630 - Performance information processing device and method
3. 8878044 - Processing device and method for displaying a state of tone generation apparatus
4. 8797326 - Display control apparatus
5. 8212819 - Display control apparatus
6. 7312390 - Automatic music playing apparatus and computer program therefor