Average Co-Inventor Count = 4.00
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. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)
2 patents:
1. 7308478 - Communication terminal, server unit, mail incoming notification method and system, and mail sending and receiving method
2. 7027583 - Telephone speech control system, intermediate processing device, and exchange