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. Ngk Insulators, Inc. (2 from 4,916 patents)
2. Ngk Optoceramics Co., Ltd. (1 from 9 patents)
2 patents:
1. 7521870 - Luminous containers and those for high pressure discharge lamps
2. 4865414 - Reinforcing members for connecting optical fibers and production thereof