Average Co-Inventor Count = 4.00
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. Toshiba Kikai Kabushiki Kaisha (2 from 746 patents)
2 patents:
1. 5735599 - Screw for molding machine that prevents a wrapping phenomenon
2. 4966540 - Molding machines using rotary screws