Average Co-Inventor Count = 6.43
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. Sumitomo Osaka Cement Co., Ltd. (2 from 476 patents)
2 patents:
1. 5727105 - Package structure for optical element and fibers and composite structure
2. 5613026 - Package structure for optical element and fibers and composite structure