Average Co-Inventor Count = 5.09
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. Mitsubishi Electric Telecom Europe (1 from 6 patents)
2. Mitsubishi Electric France (1 from 5 patents)
2 patents:
1. 6668063 - Electrical apparatus with electro-acoustic transducer
2. 6665544 - SIM card reader and mobile telephone equipped with same