Average Co-Inventor Count = 2.00
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. Mitsui Minings & Melting Co., Ltd. (2 from 817 patents)
2. Fuji Sangyo Co., Ltd. (2 from 8 patents)
2 patents:
1. 4020944 - Transporting apparatus
2. 3946854 - Transporting method