Average Co-Inventor Count = 5.37
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. Shinko Electric Company, Ltd. (2 from 227 patents)
2. Shimizu Construction Co., Ltd. (2 from 116 patents)
3. Muratec Automation Co., Ltd. (1 from 21 patents)
3 patents:
1. 7765936 - Transporting system with fire door, rail apparatus with fire door, and transporting system
2. 4904153 - Transporting robot for semiconductor wafers
3. 4867629 - Dusttight storage cabinet apparatus for use in clean rooms