Average Co-Inventor Count = 1.50
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. Shinpo Kogyo Kabushiki Kaisha (1 from 6 patents)
2. Shimpo Kogyo Kabushiki Kaisha (1 from 3 patents)
2 patents:
1. 4771640 - Load introducing device
2. 4587855 - Tensionmeter