Average Co-Inventor Count = 2.00
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. Kyocera Corporation (2 from 6,667 patents)
2. Aisin Seiki Kabushiki Kaisha (5,207 patents)
2 patents:
1. D1038071 - Earphone
2. D1020690 - Earphone