Average Co-Inventor Count = 2.00
ph-index = 3
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. Zaidan Hojin Handotai Kenkyu Shinkokai (2 from 73 patents)
2. Budda Hajia Handotai Kenkyu Shinkokai (1 from 1 patent)
3 patents:
1. 4436770 - Oxynitride film and its manufacturing method
2. 4416952 - Oxynitride film and its manufacturing method
3. 4331737 - Oxynitride film and its manufacturing method