Average Co-Inventor Count = 3.27
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. Daito Electric Machine Industry Company Limited (3 from 27 patents)
3 patents:
1. 9173804 - Lower-leg massage device
2. 8696608 - Lower leg massage apparatus
3. 8500664 - Massage chair with foot massaging device