Average Co-Inventor Count = 1.00
ph-index = 3
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. Mitsui Mining Co., Ltd. (3 from 44 patents)
3 patents:
1. 5392738 - Steam generator for a steam bath
2. 5333573 - Steam generator for a steam bath
3. 5215043 - Steam generator for a steam bath