Average Co-Inventor Count = 4.32
ph-index = 3
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. Kyusyu Hitachi Maxell, Ltd. (2 from 6 patents)
2. Kyushu Hitachi Maxell, Ltd. (1 from 37 patents)
3 patents:
1. D317367 - Electric nail polisher
2. D296929 - Massager
3. D294743 - Hair curling iron