Average Co-Inventor Count = 3.43
ph-index = 2
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. Oki Electric Industry Co., Ltd. (2 from 4,979 patents)
2 patents:
1. 4930089 - Method for identifying coordinate data for selected locations on
2. 4741636 - Dot drive circuit of wire dot type printer