Average Co-Inventor Count = 6.00
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. (2 from 42,508 patents)
2. Takeda Chemical Industries, Inc. (2 from 1,858 patents)
2 patents:
1. 5370821 - Optically active compounds, liquid crystal compositions comprising said
2. 5269965 - Optically active compounds, liquid crystal compositions comprising said