Average Co-Inventor Count = 2.18
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. Alps Electric Co., Ltd. (4 from 4,048 patents)
2. Sony Computer Entertainment Inc. (1 from 1,799 patents)
4 patents:
1. 8975542 - Pressing-type input device
2. 8115588 - Operating device and game controller
3. 6567074 - Operation apparatus using operating unit having plural push-buttons formed integrally therewith
4. 6147679 - Mouse-type input device