Average Co-Inventor Count = 6.00
ph-index = 1
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. Other (1 from 832,880 patents)
2. Nagano Keiki Co., Ltd. (1 from 64 patents)
3. Aoyama Seisakusho Ibaraki Plant Co., Ltd. (1 from 2 patents)
4. Inoue, Akihisa (0 patent)
1 patent:
1. 7427171 - Pressure vessel formed by joining two members made of different materials