Average Co-Inventor Count = 5.00
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. Matsushita Electric Works, Ltd. (1 from 1,623 patents)
2. Nippon Zeon Company, Ltd. (1 from 598 patents)
2 patents:
1. 6777117 - Catalysts for water gas shift reaction, method for removing carbon monoxide in hydrogen gas and electric power-generating system of fuel cell
2. 6013407 - Positive resist composition