Average Co-Inventor Count = 4.80
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. Tokyo Keiki Company Limited (2 from 95 patents)
2 patents:
1. 4937795 - Access alarming method and apparatus for working vehicle
2. 4336594 - Automatic steering apparatus for ships