Average Co-Inventor Count = 5.09
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. Hitachi, Ltd. (1 from 42,496 patents)
2. Hitachi Construction Machinery Co., Ltd. (1 from 1,504 patents)
2 patents:
1. 4753515 - Method for assembling flat type plastic multifiber connectors
2. 4484796 - Optical fiber connector