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. Ricoh Company, Ltd. (1 from 28,559 patents)
2. Chiba University (1 from 147 patents)
1 patent:
1. 8570639 - Electrophoretic liquid, image display medium, and image display device