Average Co-Inventor Count = 2.90
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. Namco Limited (3 from 199 patents)
2. Togo Japan, Inc. (1 from 7 patents)
3. N & T Co., Ltd. (1 from 1 patent)
4. Akatsukikougei Kabushiki Kaisha (1 from 1 patent)
3 patents:
1. 6463859 - Game machine system
2. 5127657 - Amusement system
3. 4976438 - Multi-player type video game playing system