Average Co-Inventor Count = 2.40
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 28,566 patents)
2. Asahi Kasei Kaisha (1 from 1 patent)
2 patents:
1. 7751294 - Information recording method, information recording apparatus, optical disk, program and computer readable recording medium
2. 6306519 - Coating material and film extremely excellent in barrier properties, and method for producing the same