Average Co-Inventor Count = 3.00
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. Kyushu Hitachi Maxell, Ltd. (2 from 37 patents)
2 patents:
1. D306917 - Electric hair trimmer
2. D306779 - Electric trimmer