Average Co-Inventor Count = 10.29
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. Toa Nenryo Kogyo Kabushiki Kaisha (1 from 220 patents)
2. Tonen Corporation (1 from 141 patents)
2 patents:
1. 5145812 - Molded articles formed of silicon nitride based ceramic and process for
2. 5128286 - Boron-containing, silicon nitride-based ceramic shaped body