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. Canon Kabushiki Kaisha (2 from 90,673 patents)
2. Yamakawa Yakuhin Kogyo Kabushiki Kaisha (2 from 2 patents)
2 patents:
1. 4873018 - Optically active compound, process for producing same and liquid crystal
2. 4798680 - Optically active compound, process for producing same and liquid crystal