Average Co-Inventor Count = 2.54
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. Sony Corporation (6 from 58,130 patents)
2. Sony Group Corporation (3,458 patents)
6 patents:
1. 11664006 - Sound output device
2. 11386880 - Acoustic output apparatus
3. 11363366 - Headphone device
4. 11256473 - Information processing device, information processing method, and program
5. 10809972 - Information processing device, information processing method, and program
6. 9536515 - Headphone device