Average Co-Inventor Count = 9.60
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. Other (1 from 832,880 patents)
2. Hitachi, Ltd. (1 from 42,508 patents)
3. Shimizu Construction Co., Ltd. (1 from 116 patents)
2 patents:
1. 6745533 - Building and construction method therefor
2. 5119598 - Method of construction of top slab for a nuclear containment building