Average Co-Inventor Count = 3.00
ph-index = 1
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. Other (1 from 832,912 patents)
2. Kabushiki Kaisha Toshiba (1 from 52,766 patents)
1 patent:
1. 7181068 - Mathematical expression recognizing device, mathematical expression recognizing method, character recognizing device and character recognizing method