Average Co-Inventor Count = 3.43
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. Fujitsu Corporation (4 from 39,228 patents)
2. Yamaha Corporation (1 from 5,450 patents)
4 patents:
1. 10891021 - Dynamic variation for selection option information presentation
2. 10860176 - Image control method and device
3. 10820132 - Voice providing device and voice providing method
4. 10372297 - Image control method and device