Average Co-Inventor Count = 6.00
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 28,584 patents)
1 patent:
1. 7042830 - Phase-change optical information recording medium, and optical information recording and reproducing apparatus and method for the same