Average Co-Inventor Count = 2.18
ph-index = 3
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. Daifuku Co., Ltd. (2 from 708 patents)
2. Ishida Co. Limited (2 from 448 patents)
4 patents:
1. 9969551 - Article transport facility
2. 9187300 - Article storage facility
3. 6430895 - Packing system article distributive directing mechanism
4. 5622025 - Package transporting and loading system