Average Co-Inventor Count = 7.76
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. Toyota Jidosha Kabushiki Kaisha (2 from 36,713 patents)
2. Nippon Steel Corporation (1 from 3,562 patents)
3. Sumitomo Metal Industries, Inc. (1 from 929 patents)
4. Nippon Kinzoku Co., Ltd. (1 from 21 patents)
2 patents:
1. 5489345 - Steel for use in exhaust manifolds of automobiles
2. 5045404 - Heat-resistant stainless steel foil for catalyst-carrier of combustion