Average Co-Inventor Count = 1.25
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. Takeuchi Mfg. Co., Ltd. (3 from 34 patents)
2. Kabushikikaisha Chikuhou (1 from 1 patent)
4 patents:
1. 10125746 - Motion conversion device
2. 8100210 - Electrically driven industrial vehicle
3. 7216483 - Power generating system utilizing buoyancy
4. 7213398 - Power generation device utilizing river flow or seawater