Average Co-Inventor Count = 2.57
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. Ngk Insulators, Inc. (3 from 4,916 patents)
3 patents:
1. 12040160 - Semiconductor-manufacturing apparatus member and plug
2. 10301992 - Heater and honeycomb structure including heater
3. 9278363 - Nozzle and honeycomb filter production apparatus using the same