Average Co-Inventor Count = 1.00
ph-index = NA
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. Mitsui Engineering and Shipbuilding Company Limited (244 patents)
2. The Japan Association of Marine Safety (2 patents)
3. M.o. Marine Consulting, Ltd. (2 patents)
4. Shinko Ind. Ltd. (2 patents)
5. Laboratory of Aquatic Science Consultant Co., Ltd. (1 patent)
0 patent: