Average Co-Inventor Count = 2.50
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. Fujitsu Corporation (1 from 39,245 patents)
2. Nec Corporation (1 from 35,756 patents)
3. Rion Company Ltd. (1 from 85 patents)
3 patents:
1. 5930772 - Volume-dependent accounting system and method in connectionless
2. 5043044 - Monocrystalline silicon wafer
3. 4175338 - Artificial palate for use in dynamic palatographical speech researches