Average Co-Inventor Count = 3.43
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. Panasonic Intellectual Property Management Co., Ltd. (2 from 13,247 patents)
2 patents:
1. 9769571 - Loudspeaker and electronic apparatus using the loudspeaker
2. 9042593 - Sound playback device and electronic device using same