Average Co-Inventor Count = 4.13
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. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)
2. University of Occupational and Enviromental Health, Japan (1 from 6 patents)
3 patents:
1. 9937095 - Exercise training apparatus
2. 5301271 - Image processing separately processing two-density-level image data and
3. 5108207 - Printer with variable memory size