Average Co-Inventor Count = 3.60
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. Ashimori Kogyo Kabushiki Kaisha (2 from 23 patents)
2. Ashimori Industry Co., Ltd. (1 from 148 patents)
3 patents:
1. 5671778 - Repairing tube, method for repairing pipe lines therewith and method for
2. 4724178 - Lining material for pipe lines
3. 4686126 - Tubular lining material for city water pipe lines