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. Rion Company Ltd. (1 from 85 patents)
2. Kukamoto University (1 from 1 patent)
3. Munehiro Date (1 from 1 patent)
4. Kumamoto University (98 patents)
5. Date, Munehiro (0 patent)
1 patent:
1. 8104336 - Acoustic capacity, volume, and surface area measurement method