Average Co-Inventor Count = 2.61
ph-index = 3
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. Hitachi, Ltd. (4 from 42,485 patents)
4 patents:
1. 7663776 - Document processing apparatus and method
2. 7308479 - Mail server, program and mobile terminal synthesizing animation images of selected animation character and feeling expression information
3. 7190770 - Method and system for acquiring information with voice input
4. 6789057 - Dictionary management method and apparatus