Average Co-Inventor Count = 5.00
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. Matsushita Graphic Communication Systems, Inc. (3 from 191 patents)
3 patents:
1. 5295002 - Image communication device
2. 5206745 - Image reading device
3. 5102115 - Image reading device