Average Co-Inventor Count = 6.43
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. Mita Industrial Co., Ltd. (1 from 1,344 patents)
2. Japan Cotton Technical and Economic Research Institute of Mengyokaikan (1 from 1 patent)
2 patents:
1. 5671476 - Image forming machine with cleaning drum brush driven by rotating drum
2. 4827574 - Device for removing short fibers