Average Co-Inventor Count = 5.39
ph-index = 5
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. (5 from 42,496 patents)
5 patents:
1. 5864808 - Erroneous input processing method and apparatus in information
2. 5687221 - Information processing apparatus having speech and non-speech
3. 5612720 - Systems for processing information and identifying individual
4. 5453762 - Systems for processing information and identifying individual
5. 5400243 - Method of correcting print data and system of editing and printing