Average Co-Inventor Count = 6.00
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. Hitachi Chemical Company, Ltd. (2 from 1,641 patents)
2 patents:
1. 5648135 - Information recording medium having recording layer with organic polymer
2. 5464673 - Information recording medium having recording layer with organic polymer