Average Co-Inventor Count = 5.46
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. Kobe Steel, Ltd. (2 from 1,883 patents)
2. Kobelco Construction Machinery Co., Ltd. (2 from 626 patents)
3. Kabushiki Kaisha Kobe Seiko Sho (1,100 patents)
2 patents:
1. 10352279 - Construction machine
2. 10156059 - Construction machine including engine