Average Co-Inventor Count = 1.33
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. Nakamura Kinzoku Kogyosho, Inc. (2 from 3 patents)
2 patents:
1. 4450886 - Method of producing suction manifolds for automobile engines
2. 3966240 - Quick-action pipe joint