Average Co-Inventor Count = 2.09
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. Hitachi, Ltd. (2 from 42,485 patents)
2. Honda Motor Co., Ltd. (2 from 21,831 patents)
3. Daifuku Co., Ltd. (2 from 706 patents)
4. Daifuku Design and Engineering Co., Ltd. (1 from 1 patent)
4 patents:
1. 8353396 - Door conveying apparatus
2. 8230988 - Apparatus for transferring vehicles onto conveyor
3. 6954854 - Electronic authentication method, electronic authentication apparatus and electronic authentication storage medium
4. 6952775 - Method and system for electronic authentification