Average Co-Inventor Count = 3.00
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. Nihon Kohden Corporation (3 from 556 patents)
2. Dainippon Sumitomo Pharma Co., Ltd. (2 from 140 patents)
5 patents:
1. 8781751 - Biological information trend display device and method thereof
2. 8688205 - Electrocardiogram chart device and method thereof
3. 8508530 - Electrocardiogram chart device and method thereof
4. 7907995 - Electrocardiography chart apparatus and method thereof
5. 7371214 - Vital sign display device and method thereof