Average Co-Inventor Count = 5.00
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. Sumitomo Metal Industries, Inc. (2 from 929 patents)
2. Kawasaki Steel Corporation (1 from 1,256 patents)
3. Sumitomo Heavy Industries, Ltd. (1 from 1,186 patents)
4. Nkk Corporation (1 from 614 patents)
5. Diamond Engineering Co., Ltd. (1 from 5 patents)
6. Kansai Netukagaku Kabushiki Kaisha (1 from 1 patent)
2 patents:
1. 5745969 - Method and apparatus for repairing a coke oven
2. 5285735 - Control apparatus for injection quantity of pulverized coal to blast