Average Co-Inventor Count = 4.00
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. Sharp Kabushiki Kaisha Corporation (1 from 25,577 patents)
2. Brother Industries, Ltd. (1 from 982 patents)
1 patent:
1. 4620094 - Photoelectric encoder