Average Co-Inventor Count = 2.40
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. Pfu Limited (3 from 677 patents)
2. Fujitsu Corporation (1 from 39,230 patents)
3. Kanazawa University (1 from 86 patents)
4. Ishikawa Prefecture (1 from 10 patents)
3 patents:
1. 8302181 - Image reading apparatus, authentication method, evaluation system, method, and computer program product
2. 7038658 - Input device
3. 6941030 - Character-recognition pre-processing apparatus and method, and program recording medium