Average Co-Inventor Count = 2.50
ph-index = 4
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. Konami Co., Ltd. (5 from 253 patents)
5 patents:
1. 6461239 - Music action game machine, performance operation instructing system for music action game and storage device readable by computer
2. 6379244 - Music action game machine, performance operation instructing system for music action game and storage device readable by computer
3. 5741013 - Prize catching game machine
4. 5688175 - Game machine
5. 5571267 - Target hitting game machine