Average Co-Inventor Count = 3.31
ph-index = 4
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. (7 from 27,375 patents)
2. Panasonic Intellectual Property Management Co., Ltd. (1 from 13,307 patents)
8 patents:
1. 11869280 - Information providing method and information providing system
2. 7308478 - Communication terminal, server unit, mail incoming notification method and system, and mail sending and receiving method
3. 7027583 - Telephone speech control system, intermediate processing device, and exchange
4. 6690950 - Data recording system for storing as data the contents of telephone calls made by internal telephones and by mobile telephones having memory card data storage function
5. 6421536 - Communication system
6. 6092228 - Message receiving apparatus and message transmitting and receiving method
7. 5982294 - Paging receiver which performs data communication protocol analysis
8. 5799023 - Message receiver