Average Co-Inventor Count = 4.80
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. Casio Computer Co., Ltd. (4 from 5,229 patents)
4 patents:
1. 5050138 - Electronic wrist watch having a sound producing unit and an electrooptic
2. 4985878 - Electronic timepiece with analog time display unit and electrooptic data
3. 4697931 - Electronic timepiece including slidable digital display sections
4. 4426159 - Electronic time keeping device